Handle cases when there are multiple EntityWorkflows associated with one entity

src/Bundle/ChillMainBundle/Repository/Workflow/EntityWorkflowRepository.php

@@ -99,7 +99,10 @@ class EntityWorkflowRepository implements ObjectRepository
         return $this->repository->findAll();
     }
 
-    public function findByRelatedEntity($entityClass, $relatedEntityId): ?EntityWorkflow
+    /**
+     * @return list<EntityWorkflow>
+     */
+    public function findByRelatedEntity($entityClass, $relatedEntityId): array
     {
         $qb = $this->repository->createQueryBuilder('w');