public function relatedEntitiesCanBePersistedWhenFetchedAsDoctrineProxy()
{
$entity = new Fixtures\TestEntity();
$entity->setName('Andi');
$relatedEntity = new Fixtures\TestEntity();
$relatedEntity->setName('Robert');
$entity->setRelatedEntity($relatedEntity);
$this->testEntityRepository->add($entity);
$this->testEntityRepository->add($relatedEntity);
$this->persistenceManager->persistAll();
$this->persistenceManager->clearState();
$entityIdentifier = $this->persistenceManager->getIdentifierByObject($entity);
$loadedEntity = $this->testEntityRepository->findByIdentifier($entityIdentifier);
$clonedRelatedEntity = clone $loadedEntity->getRelatedEntity();
$this->testEntityRepository->add($clonedRelatedEntity);
$this->persistenceManager->persistAll();
$this->persistenceManager->clearState();
$clonedEntityIdentifier = $this->persistenceManager->getIdentifierByObject($clonedRelatedEntity);
$clonedLoadedEntity = $this->testEntityRepository->findByIdentifier($clonedEntityIdentifier);
$this->assertInstanceOf(Fixtures\TestEntity::class, $clonedLoadedEntity);
}