bzr has the bzr-colo plugin to support co-located branches. Like I said in another comment, I think bzr, git and hg are comparable and there isn't a clear winne

bzr has the bzr-colo plugin to support co-located branches. Like I said in another comment, I think bzr, git and hg are comparable and there isn't a clear winner (and there need not be). https://launchpad.net/bzr-colo https://launchpad.net/bzr-colo