code: def __fix_field_date(self, item, attribute):
          
  
          field_date = str_to_datetime(item[attribute])
  
          try:
              _ = int(field_date.strftime("%z")[0:3])
          except ValueError:
              logger.warning("%s in commit %s has a wrong format", attribute, item['commit'])
              item[attribute] = field_date.replace(tzinfo=None).isoformat()
docs: Fix possible errors in the field date