subversion bugtracking integration

I've been using subversion for quite some time on personal projects. I'd love to start using subversion at work as cvs over a samba share isn't quite kosher. The interesting part of this is that using file/folder properties you can have some simple bug tracking integration (mantis, trac, bugzilla, fogbugz). This comes in handy when you need to figure out why changes were done (this is exactly the type of information that the kde khtml devs wanted). The integration comes from third party UI's (like TortoiseSVN), not from subversion's own tools afaik, which means that cmd line integrated usage is out (at least until someone decides they want to add it).

Unfortunately there isn't a actively developed product like tortoise for osx, there is scplugin but I do not believe it is under development at this time. In addition I don't believe that svnX (another osx svn ui) has support for the bug tracker properties.