Merge branch '3.4' into 4.4

* 3.4:
  [PropertyAccess] fix tests
  [WebProfilerBundle] fix test
  remove assertions that can never be reached
  [PropertyAccess] Improve message of unitialized property in php 7.4
  [HttpFoundation] Fixed session migration with custom cookie lifetime
  [Serializer] Remove unused variable
  Allow URL-encoded special characters in basic auth part of URLs
  [Serializer] Fix unitialized properties (from PHP 7.4.2) when serializing context for the cache key
  [Validator] Add missing Ukrainian and Russian translations
  No need to reconnect the bags to the session
  Support for Content Security Policy style-src-elem and script-src-elem in WebProfiler
  [PropertyInfo][ReflectionExtractor] Check the array mutator prefixes last when the property is singular

Session/Storage/NativeSessionStorage.php

@@ -215,8 +215,10 @@ public function regenerate($destroy = false, $lifetime = null)
             return false;
         }
 
-        if (null !== $lifetime) {
+        if (null !== $lifetime && $lifetime != ini_get('session.cookie_lifetime')) {
+            $this->save();
             ini_set('session.cookie_lifetime', $lifetime);
+            $this->start();
         }
 
         if ($destroy) {
@@ -225,10 +227,6 @@ public function regenerate($destroy = false, $lifetime = null)
 
         $isRegenerated = session_regenerate_id($destroy);
 
-        // The reference to $_SESSION in session bags is lost in PHP7 and we need to re-create it.
-        // @see https://bugs.php.net/70013
-        $this->loadSession();
-
         if (null !== $this->emulateSameSite) {
             $originalCookie = SessionUtils::popSessionCookie(session_name(), session_id());
             if (null !== $originalCookie) {

Tests/Session/Storage/NativeSessionStorageTest.php

@@ -120,6 +120,19 @@ public function testRegenerateDestroy()
         $this->assertEquals(11, $storage->getBag('attributes')->get('legs'));
     }
 
+    public function testRegenerateWithCustomLifetime()
+    {
+        $storage = $this->getStorage();
+        $storage->start();
+        $id = $storage->getId();
+        $lifetime = 999999;
+        $storage->getBag('attributes')->set('legs', 11);
+        $storage->regenerate(false, $lifetime);
+        $this->assertNotEquals($id, $storage->getId());
+        $this->assertEquals(11, $storage->getBag('attributes')->get('legs'));
+        $this->assertEquals($lifetime, ini_get('session.cookie_lifetime'));
+    }
+
     public function testSessionGlobalIsUpToDateAfterIdRegeneration()
     {
         $storage = $this->getStorage();