Fix tests

Author: voronkovich

tests/AppBundle/Controller/BlogControllerTest.php

@@ -85,6 +85,8 @@ public function testNewComment()
 
         $this->assertSame(Response::HTTP_FOUND, $client->getResponse()->getStatusCode());
 
+        $client->getContainer()->get('doctrine')->getManager()->clear();
+
         $post = $client->getContainer()->get('doctrine')->getRepository(Post::class)->find(1);
         // The first one is the most recent comment because of the automatic sorting
         // defined in the comments association of the Post entity