code: def _reset(self, command, *args, **kwargs):
          
          if self.indexable:
              self.deindex()
          result = self._traverse_command(command, *args, **kwargs)
          if self.indexable:
              self.index()
          return result
docs: Shortcut for commands that reset values of the field.
          All will be deindexed and reindexed.