It was nearly 2 years ago when we needed it, and we avoided the issue by overriding get_names(). I'll have to find the code in which this was used to answer your question.

I guess we could've modified the class definition, however weirdly would that look.

But then again, shouldn't the commands that are runnable from inside .cmdloop() be auto-completable and visible in 'help'? IMHO it does make some intuitive sense, or at least it seems less surprising.