ALlow retrieving all models

aleksis/core/managers.py

@@ -16,14 +16,11 @@ class AlekSISBaseManager(_CurrentSiteManager):
 
     def unmanaged(self) -> QuerySet:
         """Get instances that are not managed by any particular app."""
-        return super().get_queryset().filter(managed_by_app_label="")
+        return self.get_queryset().filter(managed_by_app_label="")
 
     def managed_by_app(self, app_label: str) -> QuerySet:
         """Get instances managed by a particular app."""
-        return super().get_queryset().filter(managed_by_app_label=app_label)
-
-    def get_queryset(self) -> QuerySet:
-        return self.unmanaged()
+        return self.get_queryset().filter(managed_by_app_label=app_label)
 
 
 # FIXME rename this and other classes after removing sites framework