Pass the right argument to queryset_mutate

mixins/views.py

@@ -63,11 +63,13 @@ class ObjectList(RestrictedViewMixin, ObjectNameMixin, ListView):
 
         self.request = request
         self.object_list = self.get_queryset(**kwargs)
-        self.queryset_mutate(self.queryset)
+
         if isinstance(self.object_list, HttpResponse):
             return self.object_list
         if isinstance(self.object_list, HttpResponseBadRequest):
             return self.object_list
+
+        self.queryset_mutate(self.object_list)
         allow_empty = self.get_allow_empty()
 
         self.template_name = f"mixins/wm/{type}.html"