ensure local variable is initialised before it is used
@@ -277,6 +277,7 @@ class MessageMAU(object):
_add = ''
_del = ''
_exist = ''
+ _hints = ''
if self.add_list != None: _add = ' add=%r' % self.add_list
if self.del_list != None: _del = ' del=%r' % self.del_list
if self.exist_list != None: _exist = ' exist=%r' % self.exist_list
