I'm seeing quite a few of these in my 2.1b1 logs. Any idea what might be causing them?

Apr 16 16:00:26 2002 (27714) Uncaught runner exception: bad character range Apr 16 16:00:26 2002 (27714) Traceback (most recent call last): File "/usr/local/mailman/Mailman/Queue/Runner.py", line 103, in __oneloop self.__onefile(msg, msgdata) File "/usr/local/mailman/Mailman/Queue/Runner.py", line 153, in __onefile keepqueued = self._dispose(mlist, msg, msgdata) File "/usr/local/mailman/Mailman/Queue/IncomingRunner.py", line 111, in _dispose status = self._dopipeline(mlist, msg, msgdata, pipeline) File "/usr/local/mailman/Mailman/Queue/IncomingRunner.py", line 134, in _dopipeline sys.modules[modname].process(mlist, msg, msgdata) File "/usr/local/mailman/Mailman/Handlers/Tagger.py", line 54, in process cre = re.compile(pattern, re.IGNORECASE | re.VERBOSE) File "/usr/local/lib/python2.2/sre.py", line 178, in compile return _compile(pattern, flags) File "/usr/local/lib/python2.2/sre.py", line 228, in _compile raise error, v # invalid expression error: bad character range

-- Sarah Plus ça change, plus c'est la même chose