id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 11892 Model __eq__ is not symmetric. pmcnerthney@… nobody "The Model test for equal implemented in eq is not symmetric. A non-deferred instance compares equal to a deferred instance, but a deferred instance compares unequal to a non-deferred instance. This is due to the following implementation of eq: {{{ def __eq__(self, other): return isinstance(other, self.__class__ and self._get_pk_val() == other._get_pk_val() }}} This needs to be changed to: {{{ def __eq__(self, other): return (isinstance(other, self.__class__) or isinstance(self, other.__class__)) and self._get_pk_val() == other._get_pk_val() }}} Which allows for complete symmetric of comparisons. " Bug closed Database layer (models, ORM) dev Normal fixed Colin Copeland anssi.kaariainen@… marti@… Ready for checkin 1 0 0 0 0 0