bug #35656 [HttpFoundation] Fixed session migration with custom cookie lifetime (Guite)

This PR was squashed before being merged into the 3.4 branch.

Discussion
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[HttpFoundation] Fixed session migration with custom cookie lifetime

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #28577
| License       | MIT
| Doc PR        |

This PR adds the fix proposed in symfony/symfony#28577 (comment)

Commits
-------

3e824de385 [HttpFoundation] Fixed session migration with custom cookie lifetime

Author: nicolas-grekas

Session/Storage/NativeSessionStorage.php

@@ -213,8 +213,10 @@ 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) {

Tests/Session/Storage/NativeSessionStorageTest.php

@@ -123,6 +123,19 @@ 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();