http://bugs.winehq.org/show_bug.cgi?id=28179
--- Comment #2 from Frédéric Buclin LpSolit@netscape.net 2011-08-25 13:42:17 CDT --- Talking about Debian, you know they have removed their .deb package for Bugzilla from their repositories, right?
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638705
So depending on the Debian version you will upgrade to, you will have to install Bugzilla using the official tarballs from http://www.bugzilla.org (maybe that's what you do already; I don't know :))