1 files changed, 4 insertions, 3 deletions
diff --git a/ishtar_common/models_common.py b/ishtar_common/models_common.py
index e92d7d55d..28f5aba00 100644
--- a/ishtar_common/models_common.py
+++ b/ishtar_common/models_common.py
@@ -1629,13 +1629,14 @@ class BaseHistorizedItem(
         )
     }
 
-    class Meta:
-        abstract = True
-
     @classmethod
     def get_verbose_name(cls):
         return cls._meta.verbose_name
 
+    @classmethod
+    def get_ids_from_upper_permissions(cls, user_id):
+        return []
+
     def is_locked(self, user=None):
         if not user:
             return self.locked