I'd like to propose that this bug be added to the list of bugs required for 0.1RC1 release:
http://trac.roundcube.net/trac.cgi/ticket/1484148
It breaks RFC and I've gotten complaints from a friend or two about reading the emails I've composed. I'm not sure if this is the best way to suggest a bug for RC1, if not please let me know.
Thanks,
Doug