I asked about migration in http://trac.edgewall.org/wiki/RoundUp

this is a standard feature in Trac, I think. I'm having a bit if buyers-remorse
about roundup vs trac. I just ran into another nifty project using trac
http://darcs.0x539.de/trac/obby/cgi-bin/trac.cgi (though their URIs aren't so
nice). I wonder if roundup-to-trac migration is feasible... hmm... I think it
would involve redirecting URIs; I don't think trac supports issue76 style; its
URIs structure is, for example,
http://darcs.0x539.de/trac/obby/cgi-bin/trac.cgi/ticket/155

I see some messages about resolving issues that refer to SVN revision numers.
That's great.

In some projects, it's enough to put something like:
Fixes #nnn
in the svn commit message, and the bug tracker automatically gets updated.

Surely somebody has done this for the svn/roundup pair...
indeed, I see http://www.mechanicalcat.net/tech/roundup/svn-roundup
Author: 	Richard Jones
Date: 	April 27, 2006