$entity = $this->galleryManager->findByLink($link);


                $entity->getSeoMetadata()->setTitle($metaTitle);
                $entity->getSeoMetadata()->setMetaDescription($metaDescription);
                $entity->getSeoMetadata()->setMetaKeywords($metaKeywords);

                $em->persist($entity);
                $em->flush();

$entity = $this->galleryManager->findByLink($link);


                $entity->getSeoMetadata()->setTitle($metaTitle);
                $entity->getSeoMetadata()->setMetaDescription($metaDescription);
                $entity->getSeoMetadata()->setMetaKeywords($metaKeywords);

                $entity->setSeoMetadata(clone $entity->getSeoMetadata());

                $em->persist($entity);
                $em->flush();