Fixed failed permission checks due to non-loaded fields

Added additional exceptions to prevent such cases in the future, so
that they are caught in dev ideally.
Added test case specifically for reported favourite scenario.

app/Entities/Repos/BaseRepo.php

@@ -38,6 +38,7 @@ class BaseRepo
             $this->tagRepo->saveTagsToEntity($entity, $input['tags']);
         }
 
+        $entity->refresh();
         $entity->rebuildPermissions();
         $entity->indexForSearch();
     }