Bugzilla repo mirrors?

[Bill Barry]

Does anybody happen to have an hg mirror (git or bzr would be fine too) 
of the bugzilla cvs repository that I could clone (and possibly hope to 
pull from every once in a while)?

I was tasked with trying to set up testopia on my local copy of bugzilla 
and I am having some difficulties due to local modifications I have 
made. If I were able to deal with these modifications as a locally 
managed fork of bugzilla I think it would be easier to merge them and 
keep bugzilla (and testopia) up to date. I feel hopelessly lost with CVS.