513         self.commit()

   513         self.commit()

   514         # can change tr info comment

   514         # can change tr info comment

   515         self.execute('SET TI comment %(c)s WHERE TI wf_info_for X, X ref "ARCT01"',

   515         self.execute('SET TI comment %(c)s WHERE TI wf_info_for X, X ref "ARCT01"',

   516                      {'c': u'creation'})

   516                      {'c': u'creation'})

   517         self.commit()

   517         self.commit()

   518         self.assertEquals(aff.latest_trinfo().comment, 'creation')

   519         self.assertEquals(aff.latest_trinfo().comment, 'creation')

   519         # but not from_state/to_state

   520         # but not from_state/to_state

   520         self.execute('SET X in_state S WHERE X ref "ARCT01", S name "ben non"')

   521         self.execute('SET X in_state S WHERE X ref "ARCT01", S name "ben non"')

   521         self.commit()

   522         self.commit()

   522         aff.clear_related_cache('wf_info_for', role='object')

   523         aff.clear_related_cache('wf_info_for', role='object')