code: def rectify_ajax_form_data(self, data):
          
          for name, field in self.base_fields.items():
              try:
                  data[name] = field.convert_ajax_data(data.get(name, {}))
              except AttributeError:
                  pass
          return data
docs: If a widget was converted and the Form data was submitted through an Ajax request,
          then these data fields must be converted to suit the Django Form validation