Fix anonymous user subset filter. (#625)

Co-authored-by: wlorenzetti <lorenzett@gis3w.it>

g3w-admin/qdjango/models/constraints.py

@@ -240,7 +240,7 @@ def get_constraints_for_anonymoususer(cls, layer_id, context='v'):
         if not constraints:
             return []
 
-        return cls.objects.filter(anonymoususer=True)
+        return cls.objects.filter(anonymoususer=True, constraint__in=constraints)
 
     @classmethod
     def get_rule_definition_for_user(cls, user, layer_id, context='v'):