Segetech has announced the availability of a Bugzilla/Subversion/Wiki Integration Guide
"This document provides a detailed configuration guide to integrate
incrementally several Open Source development tools ...
Bugzilla/SVN/MediaWiki are all linked to each other and they together with
mailing lists and various SVN utilities provide easily accessible way to
see changes to documentation and source code, handling of bug reports, and
people contributing to projects without any additional tools or
to post comments)