def save(self, force_insert=False, force_update=False, reset_short_html=True):
if reset_short_html:
# Reset _short_html during save
- self._short_html = ''
+ for key in filter(lambda x: x.startswith('_short_html'), self.__dict__):
+ self.key = ''
book = super(Book, self).save(force_insert, force_update)