docs: def prepare(_next, self):
          """Hook after prepare and set 'id' disabled.
          """
          _next(self)
          if not self.autoincrement_support:
              return
          id_field = self.form['id']
          del id_field.attrs['required']
          id_field.attrs['disabled'] = 'disabled'
          id_field.getter = _('auto_incremented', default='auto incremented')