symfony
diff --git a/‎src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
+2-1Lines changed: 2 additions & 1 deletion b/‎src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
+2-1Lines changed: 2 additions & 1 deletion
@@ -76,6 +76,7 @@ public function collect(Request $request, Response $response, \Exception $except
 
         $sessionMetadata = array();
         $sessionAttributes = array();
+        $session = null;
         $flashes = array();
         if ($request->hasSession()) {
             $session = $request->getSession();
@@ -129,7 +130,7 @@ public function collect(Request $request, Response $response, \Exception $except
             unset($this->controllers[$request]);
         }
 
-        if (isset($session)) {
+        if (null !== $session) {
             if ($request->attributes->has('_redirected')) {
                 $this->data['redirect'] = $session->remove('sf_redirect');
             }