diff --git a/apps/accessibility/composer/autoload.php b/apps/accessibility/composer/autoload.php
index f624ded395071..6f896b45abc27 100644
--- a/apps/accessibility/composer/autoload.php
+++ b/apps/accessibility/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitAccessibility::getLoader();
diff --git a/apps/accessibility/composer/composer/autoload_real.php b/apps/accessibility/composer/composer/autoload_real.php
index a08983b79fe30..8b2b83d313909 100644
--- a/apps/accessibility/composer/composer/autoload_real.php
+++ b/apps/accessibility/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitAccessibility', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitAccessibility::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitAccessibility::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/admin_audit/composer/autoload.php b/apps/admin_audit/composer/autoload.php
index 7970e9ebe1211..d316fe42c512e 100644
--- a/apps/admin_audit/composer/autoload.php
+++ b/apps/admin_audit/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitAdminAudit::getLoader();
diff --git a/apps/admin_audit/composer/composer/autoload_real.php b/apps/admin_audit/composer/composer/autoload_real.php
index ffbbdd4e26983..bd7d1f99dd120 100644
--- a/apps/admin_audit/composer/composer/autoload_real.php
+++ b/apps/admin_audit/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitAdminAudit', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitAdminAudit::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitAdminAudit::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/cloud_federation_api/composer/autoload.php b/apps/cloud_federation_api/composer/autoload.php
index fcf0f06284695..fc52f01bfafcc 100644
--- a/apps/cloud_federation_api/composer/autoload.php
+++ b/apps/cloud_federation_api/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitCloudFederationAPI::getLoader();
diff --git a/apps/cloud_federation_api/composer/composer/autoload_real.php b/apps/cloud_federation_api/composer/composer/autoload_real.php
index 1c7ec9607c226..53093c129e384 100644
--- a/apps/cloud_federation_api/composer/composer/autoload_real.php
+++ b/apps/cloud_federation_api/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitCloudFederationAPI', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitCloudFederationAPI::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitCloudFederationAPI::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/comments/composer/autoload.php b/apps/comments/composer/autoload.php
index c974072d6b7a0..46d800ddaa8a6 100644
--- a/apps/comments/composer/autoload.php
+++ b/apps/comments/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitComments::getLoader();
diff --git a/apps/comments/composer/composer/autoload_real.php b/apps/comments/composer/composer/autoload_real.php
index 8668cfb671eb6..7f9d22ca0a2de 100644
--- a/apps/comments/composer/composer/autoload_real.php
+++ b/apps/comments/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitComments', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitComments::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitComments::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/contactsinteraction/composer/autoload.php b/apps/contactsinteraction/composer/autoload.php
index 7bf597cd9cddd..748e5f45fe9e6 100644
--- a/apps/contactsinteraction/composer/autoload.php
+++ b/apps/contactsinteraction/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitContactsInteraction::getLoader();
diff --git a/apps/contactsinteraction/composer/composer/autoload_real.php b/apps/contactsinteraction/composer/composer/autoload_real.php
index 8ba09879f543f..09f95c83645b0 100644
--- a/apps/contactsinteraction/composer/composer/autoload_real.php
+++ b/apps/contactsinteraction/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitContactsInteraction', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitContactsInteraction::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitContactsInteraction::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/dav/lib/Connector/Sabre/FilesPlugin.php b/apps/dav/lib/Connector/Sabre/FilesPlugin.php
index 5cc562e0ff82b..abf8209b8fbff 100644
--- a/apps/dav/lib/Connector/Sabre/FilesPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FilesPlugin.php
@@ -444,7 +444,7 @@ public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node)
 			if ($this->config->getSystemValueBool('enable_file_metadata', true)) {
 				$propFind->handle(self::FILE_METADATA_SIZE, function () use ($node) {
 					if (!str_starts_with($node->getFileInfo()->getMimetype(), 'image')) {
-						return json_encode([]);
+						return json_encode((object)[]);
 					}
 
 					if ($node->hasMetadata('size')) {
@@ -460,7 +460,7 @@ public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node)
 						\OC::$server->get(LoggerInterface::class)->warning('Inefficient fetching of metadata');
 					}
 
-					return json_encode($sizeMetadata->getMetadata());
+					return json_encode((object)$sizeMetadata->getMetadata());
 				});
 			}
 		}
diff --git a/apps/dav/lib/Files/FileSearchBackend.php b/apps/dav/lib/Files/FileSearchBackend.php
index 21eb14a29bd1f..7ee827798493d 100644
--- a/apps/dav/lib/Files/FileSearchBackend.php
+++ b/apps/dav/lib/Files/FileSearchBackend.php
@@ -124,16 +124,16 @@ public function getPropertyDefinitionsForScope(string $href, ?string $path): arr
 			new SearchPropertyDefinition(FilesPlugin::OWNER_ID_PROPERTYNAME, true, true, false),
 
 			// select only properties
-			new SearchPropertyDefinition('{DAV:}resourcetype', false, true, false),
-			new SearchPropertyDefinition('{DAV:}getcontentlength', false, true, false),
-			new SearchPropertyDefinition(FilesPlugin::CHECKSUMS_PROPERTYNAME, false, true, false),
-			new SearchPropertyDefinition(FilesPlugin::PERMISSIONS_PROPERTYNAME, false, true, false),
-			new SearchPropertyDefinition(FilesPlugin::GETETAG_PROPERTYNAME, false, true, false),
-			new SearchPropertyDefinition(FilesPlugin::OWNER_DISPLAY_NAME_PROPERTYNAME, false, true, false),
-			new SearchPropertyDefinition(FilesPlugin::DATA_FINGERPRINT_PROPERTYNAME, false, true, false),
-			new SearchPropertyDefinition(FilesPlugin::HAS_PREVIEW_PROPERTYNAME, false, true, false, SearchPropertyDefinition::DATATYPE_BOOLEAN),
-			new SearchPropertyDefinition(FilesPlugin::FILE_METADATA_SIZE, false, true, false, SearchPropertyDefinition::DATATYPE_STRING),
-			new SearchPropertyDefinition(FilesPlugin::FILEID_PROPERTYNAME, false, true, false, SearchPropertyDefinition::DATATYPE_NONNEGATIVE_INTEGER),
+			new SearchPropertyDefinition('{DAV:}resourcetype', true, false, false),
+			new SearchPropertyDefinition('{DAV:}getcontentlength', true, false, false),
+			new SearchPropertyDefinition(FilesPlugin::CHECKSUMS_PROPERTYNAME, true, false, false),
+			new SearchPropertyDefinition(FilesPlugin::PERMISSIONS_PROPERTYNAME, true, false, false),
+			new SearchPropertyDefinition(FilesPlugin::GETETAG_PROPERTYNAME, true, false, false),
+			new SearchPropertyDefinition(FilesPlugin::OWNER_DISPLAY_NAME_PROPERTYNAME, true, false, false),
+			new SearchPropertyDefinition(FilesPlugin::DATA_FINGERPRINT_PROPERTYNAME, true, false, false),
+			new SearchPropertyDefinition(FilesPlugin::HAS_PREVIEW_PROPERTYNAME, true, false, false, SearchPropertyDefinition::DATATYPE_BOOLEAN),
+			new SearchPropertyDefinition(FilesPlugin::FILE_METADATA_SIZE, true, false, false, SearchPropertyDefinition::DATATYPE_STRING),
+			new SearchPropertyDefinition(FilesPlugin::FILEID_PROPERTYNAME, true, false, false, SearchPropertyDefinition::DATATYPE_NONNEGATIVE_INTEGER),
 		];
 	}
 
diff --git a/apps/encryption/composer/autoload.php b/apps/encryption/composer/autoload.php
index 52febf19470b6..593ddde0eb01d 100644
--- a/apps/encryption/composer/autoload.php
+++ b/apps/encryption/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitEncryption::getLoader();
diff --git a/apps/encryption/composer/composer/autoload_real.php b/apps/encryption/composer/composer/autoload_real.php
index 35091c9ed4a77..aafe8533d3d84 100644
--- a/apps/encryption/composer/composer/autoload_real.php
+++ b/apps/encryption/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitEncryption', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitEncryption::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitEncryption::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/federatedfilesharing/composer/autoload.php b/apps/federatedfilesharing/composer/autoload.php
index 5273607f74a1a..e839dd1bcdd35 100644
--- a/apps/federatedfilesharing/composer/autoload.php
+++ b/apps/federatedfilesharing/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitFederatedFileSharing::getLoader();
diff --git a/apps/federatedfilesharing/composer/composer/autoload_real.php b/apps/federatedfilesharing/composer/composer/autoload_real.php
index 0a8c5bf9588a3..c6f34ef0a65f2 100644
--- a/apps/federatedfilesharing/composer/composer/autoload_real.php
+++ b/apps/federatedfilesharing/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitFederatedFileSharing', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitFederatedFileSharing::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitFederatedFileSharing::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/federation/composer/autoload.php b/apps/federation/composer/autoload.php
index 45677794dd0fc..77ae3e1c118ff 100644
--- a/apps/federation/composer/autoload.php
+++ b/apps/federation/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitFederation::getLoader();
diff --git a/apps/federation/composer/composer/autoload_real.php b/apps/federation/composer/composer/autoload_real.php
index 40dc84ff20a01..b3913e0ac701d 100644
--- a/apps/federation/composer/composer/autoload_real.php
+++ b/apps/federation/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitFederation', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitFederation::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitFederation::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/files/composer/autoload.php b/apps/files/composer/autoload.php
index 3aa13fa515d0b..cbac933329688 100644
--- a/apps/files/composer/autoload.php
+++ b/apps/files/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitFiles::getLoader();
diff --git a/apps/files/composer/composer/autoload_real.php b/apps/files/composer/composer/autoload_real.php
index 5b2c0e86043db..e3e4d9e67ef70 100644
--- a/apps/files/composer/composer/autoload_real.php
+++ b/apps/files/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitFiles', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitFiles::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitFiles::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/files_sharing/composer/autoload.php b/apps/files_sharing/composer/autoload.php
index 0aa77c00af927..02b3c10c4830b 100644
--- a/apps/files_sharing/composer/autoload.php
+++ b/apps/files_sharing/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitFiles_Sharing::getLoader();
diff --git a/apps/files_sharing/composer/composer/autoload_real.php b/apps/files_sharing/composer/composer/autoload_real.php
index 240540459849d..64a23094d9db5 100644
--- a/apps/files_sharing/composer/composer/autoload_real.php
+++ b/apps/files_sharing/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitFiles_Sharing', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitFiles_Sharing::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitFiles_Sharing::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/files_trashbin/composer/autoload.php b/apps/files_trashbin/composer/autoload.php
index ae6d572163ff9..4e88a44133f53 100644
--- a/apps/files_trashbin/composer/autoload.php
+++ b/apps/files_trashbin/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitFiles_Trashbin::getLoader();
diff --git a/apps/files_trashbin/composer/composer/autoload_real.php b/apps/files_trashbin/composer/composer/autoload_real.php
index b9a42591b0cd3..0d1aa13ee3c1b 100644
--- a/apps/files_trashbin/composer/composer/autoload_real.php
+++ b/apps/files_trashbin/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitFiles_Trashbin', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitFiles_Trashbin::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitFiles_Trashbin::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/files_versions/composer/autoload.php b/apps/files_versions/composer/autoload.php
index 7bb72360fba3b..f75dc09160c51 100644
--- a/apps/files_versions/composer/autoload.php
+++ b/apps/files_versions/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitFiles_Versions::getLoader();
diff --git a/apps/files_versions/composer/composer/autoload_real.php b/apps/files_versions/composer/composer/autoload_real.php
index e9e2ad95149dc..dad15f0b55016 100644
--- a/apps/files_versions/composer/composer/autoload_real.php
+++ b/apps/files_versions/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitFiles_Versions', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitFiles_Versions::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitFiles_Versions::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/lookup_server_connector/composer/autoload.php b/apps/lookup_server_connector/composer/autoload.php
index ab8f4ce80ff0c..521fd3630e4e9 100644
--- a/apps/lookup_server_connector/composer/autoload.php
+++ b/apps/lookup_server_connector/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitLookupServerConnector::getLoader();
diff --git a/apps/lookup_server_connector/composer/composer/autoload_real.php b/apps/lookup_server_connector/composer/composer/autoload_real.php
index 798f093c6e82e..417958ba7f159 100644
--- a/apps/lookup_server_connector/composer/composer/autoload_real.php
+++ b/apps/lookup_server_connector/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitLookupServerConnector', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitLookupServerConnector::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitLookupServerConnector::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/oauth2/composer/autoload.php b/apps/oauth2/composer/autoload.php
index 276dedf42c2c7..c7fd27c188d49 100644
--- a/apps/oauth2/composer/autoload.php
+++ b/apps/oauth2/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitOAuth2::getLoader();
diff --git a/apps/oauth2/composer/composer/autoload_real.php b/apps/oauth2/composer/composer/autoload_real.php
index 4d9e729ac2668..0253518be84c8 100644
--- a/apps/oauth2/composer/composer/autoload_real.php
+++ b/apps/oauth2/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitOAuth2', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitOAuth2::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitOAuth2::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/provisioning_api/composer/autoload.php b/apps/provisioning_api/composer/autoload.php
index 9734ee42b196e..d01dfa2c74b72 100644
--- a/apps/provisioning_api/composer/autoload.php
+++ b/apps/provisioning_api/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitProvisioning_API::getLoader();
diff --git a/apps/provisioning_api/composer/composer/autoload_real.php b/apps/provisioning_api/composer/composer/autoload_real.php
index bada942777d92..a3b1fdeb24705 100644
--- a/apps/provisioning_api/composer/composer/autoload_real.php
+++ b/apps/provisioning_api/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitProvisioning_API', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitProvisioning_API::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitProvisioning_API::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/settings/composer/autoload.php b/apps/settings/composer/autoload.php
index 04ff46ee9877e..e7087dceec21a 100644
--- a/apps/settings/composer/autoload.php
+++ b/apps/settings/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitSettings::getLoader();
diff --git a/apps/settings/composer/composer/autoload_real.php b/apps/settings/composer/composer/autoload_real.php
index 0e9941ee04d7c..865e01a7fd964 100644
--- a/apps/settings/composer/composer/autoload_real.php
+++ b/apps/settings/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitSettings', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitSettings::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitSettings::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/sharebymail/composer/autoload.php b/apps/sharebymail/composer/autoload.php
index da43a4ff256a9..bef284b432ff7 100644
--- a/apps/sharebymail/composer/autoload.php
+++ b/apps/sharebymail/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitShareByMail::getLoader();
diff --git a/apps/sharebymail/composer/composer/autoload_real.php b/apps/sharebymail/composer/composer/autoload_real.php
index 47a2c20fd5edf..cfbfdab1b1e5e 100644
--- a/apps/sharebymail/composer/composer/autoload_real.php
+++ b/apps/sharebymail/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitShareByMail', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitShareByMail::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitShareByMail::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/systemtags/composer/autoload.php b/apps/systemtags/composer/autoload.php
index 30f4cd27d40d1..5f15d59315076 100644
--- a/apps/systemtags/composer/autoload.php
+++ b/apps/systemtags/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitSystemTags::getLoader();
diff --git a/apps/systemtags/composer/composer/autoload_real.php b/apps/systemtags/composer/composer/autoload_real.php
index f9bc1f2eaffc8..340f7c9e6ed71 100644
--- a/apps/systemtags/composer/composer/autoload_real.php
+++ b/apps/systemtags/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitSystemTags', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitSystemTags::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitSystemTags::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/testing/composer/autoload.php b/apps/testing/composer/autoload.php
index dc2a7034ffab4..1ac43d5c8e98f 100644
--- a/apps/testing/composer/autoload.php
+++ b/apps/testing/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitTesting::getLoader();
diff --git a/apps/testing/composer/composer/autoload_real.php b/apps/testing/composer/composer/autoload_real.php
index 805c585644d93..0d4fabd66a065 100644
--- a/apps/testing/composer/composer/autoload_real.php
+++ b/apps/testing/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitTesting', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitTesting::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitTesting::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/twofactor_backupcodes/composer/autoload.php b/apps/twofactor_backupcodes/composer/autoload.php
index 03a8800c31871..091a9b4fefaf7 100644
--- a/apps/twofactor_backupcodes/composer/autoload.php
+++ b/apps/twofactor_backupcodes/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitTwoFactorBackupCodes::getLoader();
diff --git a/apps/twofactor_backupcodes/composer/composer/autoload_real.php b/apps/twofactor_backupcodes/composer/composer/autoload_real.php
index 0c6e6b19f3366..b063e83100f5e 100644
--- a/apps/twofactor_backupcodes/composer/composer/autoload_real.php
+++ b/apps/twofactor_backupcodes/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitTwoFactorBackupCodes', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitTwoFactorBackupCodes::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitTwoFactorBackupCodes::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/updatenotification/composer/autoload.php b/apps/updatenotification/composer/autoload.php
index 47cc4d587a545..e715564a5bdb3 100644
--- a/apps/updatenotification/composer/autoload.php
+++ b/apps/updatenotification/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitUpdateNotification::getLoader();
diff --git a/apps/updatenotification/composer/composer/autoload_real.php b/apps/updatenotification/composer/composer/autoload_real.php
index 89854cd42f4c6..b7569aff2d16f 100644
--- a/apps/updatenotification/composer/composer/autoload_real.php
+++ b/apps/updatenotification/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitUpdateNotification', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitUpdateNotification::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitUpdateNotification::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/user_ldap/composer/autoload.php b/apps/user_ldap/composer/autoload.php
index 24824c188e5e3..d1e331c189ec1 100644
--- a/apps/user_ldap/composer/autoload.php
+++ b/apps/user_ldap/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitUser_LDAP::getLoader();
diff --git a/apps/user_ldap/composer/composer/autoload_real.php b/apps/user_ldap/composer/composer/autoload_real.php
index 0e1a6558e55b1..6f0c636e7d50a 100644
--- a/apps/user_ldap/composer/composer/autoload_real.php
+++ b/apps/user_ldap/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitUser_LDAP', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitUser_LDAP::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitUser_LDAP::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/user_status/composer/autoload.php b/apps/user_status/composer/autoload.php
index b22563e6f83ec..a82d4105451f1 100644
--- a/apps/user_status/composer/autoload.php
+++ b/apps/user_status/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitUserStatus::getLoader();
diff --git a/apps/user_status/composer/composer/autoload_real.php b/apps/user_status/composer/composer/autoload_real.php
index 4ffa4b4201b1b..205d97809301e 100644
--- a/apps/user_status/composer/composer/autoload_real.php
+++ b/apps/user_status/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitUserStatus', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitUserStatus::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitUserStatus::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/apps/workflowengine/composer/autoload.php b/apps/workflowengine/composer/autoload.php
index 003e945ff8200..74a2777acf24f 100644
--- a/apps/workflowengine/composer/autoload.php
+++ b/apps/workflowengine/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInitWorkflowEngine::getLoader();
diff --git a/apps/workflowengine/composer/composer/autoload_real.php b/apps/workflowengine/composer/composer/autoload_real.php
index 8ed8cb2a7b4a2..cdc2b8a55b48d 100644
--- a/apps/workflowengine/composer/composer/autoload_real.php
+++ b/apps/workflowengine/composer/composer/autoload_real.php
@@ -27,7 +27,7 @@ public static function getLoader()
         spl_autoload_unregister(array('ComposerAutoloaderInitWorkflowEngine', 'loadClassLoader'));
 
         require __DIR__ . '/autoload_static.php';
-        \Composer\Autoload\ComposerStaticInitWorkflowEngine::getInitializer($loader)();
+        call_user_func(\Composer\Autoload\ComposerStaticInitWorkflowEngine::getInitializer($loader));
 
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
diff --git a/lib/composer/autoload.php b/lib/composer/autoload.php
index 6de0160c0b5b4..a3d144b1777de 100644
--- a/lib/composer/autoload.php
+++ b/lib/composer/autoload.php
@@ -2,6 +2,11 @@
 
 // autoload.php @generated by Composer
 
+if (PHP_VERSION_ID < 50600) {
+    echo 'Composer 2.3.0 dropped support for autoloading on PHP <5.6 and you are running '.PHP_VERSION.', please upgrade PHP or use Composer 2.2 LTS via "composer self-update --2.2". Aborting.'.PHP_EOL;
+    exit(1);
+}
+
 require_once __DIR__ . '/composer/autoload_real.php';
 
 return ComposerAutoloaderInit53792487c5a8370acc0b06b1a864ff4c::getLoader();
diff --git a/lib/composer/composer/LICENSE b/lib/composer/composer/LICENSE
index 62ecfd8d0046b..f27399a042d95 100644
--- a/lib/composer/composer/LICENSE
+++ b/lib/composer/composer/LICENSE
@@ -1,3 +1,4 @@
+
 Copyright (c) Nils Adermann, Jordi Boggiano
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -17,3 +18,4 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
+
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index be40cd4c60713..685fae9bef11c 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -2,7 +2,7 @@
 
 // autoload_classmap.php @generated by Composer
 
-$vendorDir = dirname(dirname(__FILE__));
+$vendorDir = dirname(__DIR__);
 $baseDir = dirname(dirname($vendorDir));
 
 return array(
diff --git a/lib/composer/composer/autoload_namespaces.php b/lib/composer/composer/autoload_namespaces.php
index 4a9c20beed071..f1ae7a0ffec5e 100644
--- a/lib/composer/composer/autoload_namespaces.php
+++ b/lib/composer/composer/autoload_namespaces.php
@@ -2,7 +2,7 @@
 
 // autoload_namespaces.php @generated by Composer
 
-$vendorDir = dirname(dirname(__FILE__));
+$vendorDir = dirname(__DIR__);
 $baseDir = dirname(dirname($vendorDir));
 
 return array(
diff --git a/lib/composer/composer/autoload_psr4.php b/lib/composer/composer/autoload_psr4.php
index b641d9c6a0319..74e48cf69ae28 100644
--- a/lib/composer/composer/autoload_psr4.php
+++ b/lib/composer/composer/autoload_psr4.php
@@ -2,7 +2,7 @@
 
 // autoload_psr4.php @generated by Composer
 
-$vendorDir = dirname(dirname(__FILE__));
+$vendorDir = dirname(__DIR__);
 $baseDir = dirname(dirname($vendorDir));
 
 return array(
diff --git a/lib/composer/composer/autoload_real.php b/lib/composer/composer/autoload_real.php
index a5748c7a891a8..eecff48bcf9f3 100644
--- a/lib/composer/composer/autoload_real.php
+++ b/lib/composer/composer/autoload_real.php
@@ -23,30 +23,11 @@ public static function getLoader()
         }
 
         spl_autoload_register(array('ComposerAutoloaderInit53792487c5a8370acc0b06b1a864ff4c', 'loadClassLoader'), true, true);
-        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(\dirname(__FILE__)));
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader(\dirname(__DIR__));
         spl_autoload_unregister(array('ComposerAutoloaderInit53792487c5a8370acc0b06b1a864ff4c', 'loadClassLoader'));
 
-        $useStaticLoader = PHP_VERSION_ID >= 50600 && !defined('HHVM_VERSION') && (!function_exists('zend_loader_file_encoded') || !zend_loader_file_encoded());
-        if ($useStaticLoader) {
-            require __DIR__ . '/autoload_static.php';
-
-            call_user_func(\Composer\Autoload\ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c::getInitializer($loader));
-        } else {
-            $map = require __DIR__ . '/autoload_namespaces.php';
-            foreach ($map as $namespace => $path) {
-                $loader->set($namespace, $path);
-            }
-
-            $map = require __DIR__ . '/autoload_psr4.php';
-            foreach ($map as $namespace => $path) {
-                $loader->setPsr4($namespace, $path);
-            }
-
-            $classMap = require __DIR__ . '/autoload_classmap.php';
-            if ($classMap) {
-                $loader->addClassMap($classMap);
-            }
-        }
+        require __DIR__ . '/autoload_static.php';
+        call_user_func(\Composer\Autoload\ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c::getInitializer($loader));
 
         $loader->register(true);
 
diff --git a/lib/private/Metadata/MetadataManager.php b/lib/private/Metadata/MetadataManager.php
index 69e9cb3c852e6..d1cb896febfc5 100644
--- a/lib/private/Metadata/MetadataManager.php
+++ b/lib/private/Metadata/MetadataManager.php
@@ -93,7 +93,12 @@ public function fetchMetadataFor(string $group, array $fileIds): array {
 	public function getCapabilities(): array {
 		$capabilities = [];
 		foreach ($this->providers as $supportedMimetype => $provider) {
-			$capabilities[$supportedMimetype] = $provider::groupsProvided();
+			foreach ($provider::groupsProvided() as $group) {
+				if (isset($capabilities[$group])) {
+					$capabilities[$group][] = $supportedMimetype;
+				}
+				$capabilities[$group] = [$supportedMimetype];
+			}
 		}
 		return $capabilities;
 	}
diff --git a/lib/private/Metadata/Provider/ExifProvider.php b/lib/private/Metadata/Provider/ExifProvider.php
index 91c858f679487..2e1eb1d42086b 100644
--- a/lib/private/Metadata/Provider/ExifProvider.php
+++ b/lib/private/Metadata/Provider/ExifProvider.php
@@ -25,6 +25,14 @@ public function execute(File $file): array {
 		$size->setMetadata([]);
 
 		if (!$data) {
+			$sizeResult = getimagesizefromstring($file->getContent());
+			if ($sizeResult !== false) {
+				$size->setMetadata([
+					'width' => $sizeResult[0],
+					'height' => $sizeResult[1],
+				]);
+			}
+
 			return [
 				'size' => $size,
 			];