Merge branch '4.4' into 5.4

* 4.4:
  [HttpFoundation] Fix session tests
  Bump Symfony version to 4.4.48
  Update VERSION for 4.4.47
  Update CONTRIBUTORS for 4.4.47
  Update CHANGELOG for 4.4.47

Author: nicolas-grekas

Tests/Session/Storage/Handler/Fixtures/common.inc

@@ -54,10 +54,12 @@ ob_start();
 class TestSessionHandler extends AbstractSessionHandler
 {
     private $data;
+    private $sessionId;
 
-    public function __construct($data = '')
+    public function __construct($data = '', $sessionId = null)
     {
         $this->data = $data;
+        $this->sessionId = $sessionId;
     }
 
     public function open($path, $name): bool
@@ -131,21 +133,29 @@ class TestSessionHandler extends AbstractSessionHandler
 
     protected function doRead($sessionId): string
     {
-        echo __FUNCTION__.': ', $this->data, "\n";
+        if (isset($this->sessionId) && $sessionId !== $this->sessionId) {
+            echo __FUNCTION__ . ": invalid sessionId\n";
+
+            return '';
+        }
+        echo __FUNCTION__ . ': ', $this->data, "\n";
+        $this->sessionId = $sessionId;
 
         return $this->data;
     }
 
     protected function doWrite($sessionId, $data): bool
     {
         echo __FUNCTION__.': ', $data, "\n";
+        $this->sessionId = $sessionId;
 
         return true;
     }
 
     protected function doDestroy($sessionId): bool
     {
         echo __FUNCTION__, "\n";
+        $this->sessionId = '';
 
         return true;
     }

Tests/Session/Storage/Handler/Fixtures/regenerate.expected

@@ -9,9 +9,8 @@ close
 open
 validateId
 read
-doRead: abc|i:123;
+doRead: invalid sessionId
 read
-doRead: abc|i:123;
 
 write
 doWrite: abc|i:123;

Tests/Session/Storage/Handler/Fixtures/with_samesite_and_migration.expected

@@ -8,7 +8,7 @@ close
 open
 validateId
 read
-doRead: 
+doRead: invalid sessionId
 read
 
 write