private function loadReferenceManyCollectionInverseSide(PersistentCollectionInterface $collection)
    {
        $query     = $this->createReferenceInverseSideQuery($collection->getMapping(), $collection->getOwner());
        $documents = $query->execute()->toArray();

        foreach ($documents as $key => $document) {
            $collection->add($document);
        }
    }