fix query

district/forms.py

@@ -68,4 +68,4 @@ class DistrictArticlesPageForm(SharedArticlesPageForm, JekyllImportForm):
 
             valid_tag_ids += list(self.instance.shared_tags.all())
             
-            self.fields['displayed_tags'].queryset = DistrictArticleTag.filter(id__in=valid_tag_ids).order_by("tag__name").distinct("tag__name")
+            self.fields['displayed_tags'].queryset = DistrictArticleTag.objects.filter(id__in=valid_tag_ids).order_by("tag__name").distinct("tag__name")
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