diff --git a/composer/composer/InstalledVersions.php b/composer/composer/InstalledVersions.php
index 07b32ed6ef..6d29bff66a 100644
--- a/composer/composer/InstalledVersions.php
+++ b/composer/composer/InstalledVersions.php
@@ -32,6 +32,11 @@ class InstalledVersions
      */
     private static $installed;
 
+    /**
+     * @var bool
+     */
+    private static $installedIsLocalDir;
+
     /**
      * @var bool|null
      */
@@ -309,6 +314,12 @@ public static function reload($data)
     {
         self::$installed = $data;
         self::$installedByVendor = array();
+
+        // when using reload, we disable the duplicate protection to ensure that self::$installed data is
+        // always returned, but we cannot know whether it comes from the installed.php in __DIR__ or not,
+        // so we have to assume it does not, and that may result in duplicate data being returned when listing
+        // all installed packages for example
+        self::$installedIsLocalDir = false;
     }
 
     /**
@@ -325,7 +336,9 @@ private static function getInstalled()
         $copiedLocalDir = false;
 
         if (self::$canGetVendors) {
+            $selfDir = strtr(__DIR__, '\\', '/');
             foreach (ClassLoader::getRegisteredLoaders() as $vendorDir => $loader) {
+                $vendorDir = strtr($vendorDir, '\\', '/');
                 if (isset(self::$installedByVendor[$vendorDir])) {
                     $installed[] = self::$installedByVendor[$vendorDir];
                 } elseif (is_file($vendorDir.'/composer/installed.php')) {
@@ -333,11 +346,14 @@ private static function getInstalled()
                     $required = require $vendorDir.'/composer/installed.php';
                     self::$installedByVendor[$vendorDir] = $required;
                     $installed[] = $required;
-                    if (strtr($vendorDir.'/composer', '\\', '/') === strtr(__DIR__, '\\', '/')) {
+                    if (self::$installed === null && $vendorDir.'/composer' === $selfDir) {
                         self::$installed = $required;
-                        $copiedLocalDir = true;
+                        self::$installedIsLocalDir = true;
                     }
                 }
+                if (self::$installedIsLocalDir && $vendorDir.'/composer' === $selfDir) {
+                    $copiedLocalDir = true;
+                }
             }
         }
 
diff --git a/composer/composer/autoload_classmap.php b/composer/composer/autoload_classmap.php
index e1694103eb..01fdf76fb0 100644
--- a/composer/composer/autoload_classmap.php
+++ b/composer/composer/autoload_classmap.php
@@ -61,6 +61,7 @@
     'OCA\\Richdocuments\\Migration\\Version30709Date20201111104147' => $baseDir . '/../lib/Migration/Version30709Date20201111104147.php',
     'OCA\\Richdocuments\\Migration\\Version30717Date20210310164901' => $baseDir . '/../lib/Migration/Version30717Date20210310164901.php',
     'OCA\\Richdocuments\\Migration\\Version50200Date20211220212457' => $baseDir . '/../lib/Migration/Version50200Date20211220212457.php',
+    'OCA\\Richdocuments\\Migration\\Version9000Date20250128212050' => $baseDir . '/../lib/Migration/Version9000Date20250128212050.php',
     'OCA\\Richdocuments\\Notification\\Notifier' => $baseDir . '/../lib/Notification/Notifier.php',
     'OCA\\Richdocuments\\PermissionManager' => $baseDir . '/../lib/PermissionManager.php',
     'OCA\\Richdocuments\\Preview\\EMF' => $baseDir . '/../lib/Preview/EMF.php',
diff --git a/composer/composer/autoload_static.php b/composer/composer/autoload_static.php
index c8786fb383..fe3ec8d7cc 100644
--- a/composer/composer/autoload_static.php
+++ b/composer/composer/autoload_static.php
@@ -94,6 +94,7 @@ class ComposerStaticInitRichdocuments
         'OCA\\Richdocuments\\Migration\\Version30709Date20201111104147' => __DIR__ . '/..' . '/../lib/Migration/Version30709Date20201111104147.php',
         'OCA\\Richdocuments\\Migration\\Version30717Date20210310164901' => __DIR__ . '/..' . '/../lib/Migration/Version30717Date20210310164901.php',
         'OCA\\Richdocuments\\Migration\\Version50200Date20211220212457' => __DIR__ . '/..' . '/../lib/Migration/Version50200Date20211220212457.php',
+        'OCA\\Richdocuments\\Migration\\Version9000Date20250128212050' => __DIR__ . '/..' . '/../lib/Migration/Version9000Date20250128212050.php',
         'OCA\\Richdocuments\\Notification\\Notifier' => __DIR__ . '/..' . '/../lib/Notification/Notifier.php',
         'OCA\\Richdocuments\\PermissionManager' => __DIR__ . '/..' . '/../lib/PermissionManager.php',
         'OCA\\Richdocuments\\Preview\\EMF' => __DIR__ . '/..' . '/../lib/Preview/EMF.php',
diff --git a/composer/composer/installed.php b/composer/composer/installed.php
index 895ce3d035..bde7ab1c0e 100644
--- a/composer/composer/installed.php
+++ b/composer/composer/installed.php
@@ -3,7 +3,7 @@
         'name' => '__root__',
         'pretty_version' => 'dev-main',
         'version' => 'dev-main',
-        'reference' => 'cfd48c8ab8986bf0b444fede00b5c3f70c0f703a',
+        'reference' => '198650228e624d8c27f192a8174ae0710ee5c444',
         'type' => 'library',
         'install_path' => __DIR__ . '/../',
         'aliases' => array(),
@@ -13,7 +13,7 @@
         '__root__' => array(
             'pretty_version' => 'dev-main',
             'version' => 'dev-main',
-            'reference' => 'cfd48c8ab8986bf0b444fede00b5c3f70c0f703a',
+            'reference' => '198650228e624d8c27f192a8174ae0710ee5c444',
             'type' => 'library',
             'install_path' => __DIR__ . '/../',
             'aliases' => array(),
diff --git a/lib/Migration/Version2060Date20200302131958.php b/lib/Migration/Version2060Date20200302131958.php
index 09bd814509..9c1ec387e9 100644
--- a/lib/Migration/Version2060Date20200302131958.php
+++ b/lib/Migration/Version2060Date20200302131958.php
@@ -44,7 +44,7 @@ public function changeSchema(IOutput $output, Closure $schemaClosure, array $opt
 			]);
 			$table->addColumn('guest_displayname', 'string', [
 				'notnull' => false,
-				'length' => 64,
+				'length' => 255,
 			]);
 			$table->addColumn('fileid', 'bigint', [
 				'notnull' => true,
diff --git a/lib/Migration/Version9000Date20250128212050.php b/lib/Migration/Version9000Date20250128212050.php
new file mode 100644
index 0000000000..5b2d75e05b
--- /dev/null
+++ b/lib/Migration/Version9000Date20250128212050.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Richdocuments\Migration;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+class Version9000Date20250128212050 extends SimpleMigrationStep {
+
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+		if (!$schema->hasTable('richdocuments_wopi')) {
+			return null;
+		}
+
+		$table = $schema->getTable('richdocuments_wopi');
+		if (!$table->hasColumn('guest_displayname')) {
+			return null;
+		}
+
+		$column = $table->getColumn('guest_displayname');
+		if ($column->getLength() === 255) {
+			return null;
+		}
+
+		$column->setLength(255);
+		return $schema;
+	}
+}