Issue with Wordgames plugin in Limnoria

[PoohBearIRC]

When trying to run https://github.com/mmueller/supybot-wordgames, the error shows up as:

ERROR 2013-03-22T22:50:00 Uncaught exception in scheduled function:
Traceback (most recent call last):
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/supybot/schedule.py", line 138, in run
f(_args, *_kwargs)
File "/Users/Johnny/supybot/plugins/Wordgames/plugin.py", line 625, in _get_ready
self._broadcast('ready', now=True)
File "/Users/Johnny/supybot/plugins/Wordgames/plugin.py", line 613, in _broadcast
self._broadcast_text(formatted, recipients, now)
File "/Users/Johnny/supybot/plugins/Wordgames/plugin.py", line 595, in _broadcast_text
self.announce_to(targets, text, now)
File "/Users/Johnny/supybot/plugins/Wordgames/plugin.py", line 340, in announce_to
self.send_to(dest, new_text, now)
File "/Users/Johnny/supybot/plugins/Wordgames/plugin.py", line 352, in send_to
method(ircmsgs.privmsg(dest, text))
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/supybot/ircmsgs.py", line 562, in privmsg
assert (isChannel(recipient) or isNick(recipient)), repr(recipient)
AssertionError: 'PoohBear,Anorak'
ERROR 2013-03-22T22:50:00 Exception id: 0xcb021

Note: PoohBear and Anorak are two separate users. PoohBear started the game, and the error happened when Anorak attempted to join. The plugin worked fine in stock Supybot, but stopped working after the upgrade to Limnoria.