code: def get_fieldsets(self, request, obj=None):
          
          fieldsets = super(BaseDynamicInlineAdmin, self).get_fieldsets(
                                                              request, obj)
          if issubclass(self.model, Orderable):
              for fieldset in fieldsets:
                  fields = [f for f in list(fieldset[1]["fields"])
                            if not hasattr(f, "translated_field")]
                  try:
                      fields.remove("_order")
                  except ValueError:
                      pass
                  fieldset[1]["fields"] = fields
              fieldsets[-1][1]["fields"].append("_order")
          return fieldsets
docs: Same as above, but for fieldsets.