Controller: une erreur de persister dans les actions update !!

src/AssoBundle/Controller/AssociationController.php

@@ -65,7 +65,6 @@ class AssociationController extends Controller
 
         if ($form->isSubmitted() && $form->isValid())
         {
-            $em->persist($association);
             $em->flush();
 
             return $this->redirectToRoute('asso_association_read');

src/AssoBundle/Controller/MembreController.php

@@ -65,7 +65,6 @@ class MembreController extends Controller
 
         if ($form->isSubmitted() && $form->isValid())
         {
-            $em->persist($membre);
             $em->flush();
 
             return $this->redirectToRoute('asso_membre_read');

src/TechnoBundle/Controller/OwnerController.php

@@ -5,6 +5,7 @@ namespace TechnoBundle\Controller;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 use Symfony\Component\HttpFoundation\Request;
 use TechnoBundle\Entity\Owner;
+use TechnoBundle\Form\Owner\OwnerType;
 use APIBundle\Form\Owner\OwnerAPIType;
 
 
@@ -67,7 +68,6 @@ class OwnerController extends MasterController
 
         if ($form->isSubmitted() && $form->isValid())
         {
-            $em->persist($auteur);
             $em->flush();
 
             return $this->redirectToRoute('techno_owner_read');