          else:
              form_template = self.change_form_template
  
          return TemplateResponse(request, form_template or [
              "admin/%s/%s/change_form.html" % (app_label, opts.object_name.lower()),
              "admin/%s/change_form.html" % app_label,
              "admin/change_form.html"
          ], context, current_app=self.admin_site.name)
  
      def response_add(self, request, obj, post_url_continue=None):
 
</s> remove             "admin/%s/%s/delete_confirmation.html" % (app_label, opts.object_name.lower()),
 </s> add             "admin/%s/%s/delete_confirmation.html" % (app_label, opts.model_name), </s> remove             'admin/%s/%s/change_list.html' % (app_label, opts.object_name.lower()),
 </s> add             'admin/%s/%s/change_list.html' % (app_label, opts.model_name), </s> remove             "admin/%s/%s/object_history.html" % (app_label, opts.object_name.lower()),
 </s> add             "admin/%s/%s/object_history.html" % (app_label, opts.model_name), </s> remove         "admin/%s/%s/delete_selected_confirmation.html" % (app_label, opts.object_name.lower()),
 </s> add         "admin/%s/%s/delete_selected_confirmation.html" % (app_label, opts.model_name), </s> remove                                (opts.app_label, opts.module_name),
 </s> add                                (opts.app_label, opts.model_name),
            "admin/%s/%s/change_form.html" % (app_label, opts.model_name),
          else:
              form_template = self.change_form_template
  
          return TemplateResponse(request, form_template or [
            "admin/%s/%s/change_form.html" % (app_label, opts.model_name),
              "admin/%s/change_form.html" % app_label,
              "admin/change_form.html"
          ], context, current_app=self.admin_site.name)
  
      def response_add(self, request, obj, post_url_continue=None):
keep keep keep keep replace keep keep keep keep keep
 Fixed #19689 -- Renamed `Model._meta.module_name` to `model_name`. 
django/contrib/admin/options.py