Comment 15 for bug 5158

It should be an easy patch to change bzr mv to cope with the source and destination already being moved. It just probably requires a little thought as to whether it should spit out a warning, or require a special flag etc. It'd be a good first patch for some keen bzr newbie.

I've got the beginings of an auto-rename plugin at:

http://michael.ellerman.id.au/bzr/plugins/auto-rename

It tries to match files based on their SHA1, and if that fails does a fuzzy match based on the number of lines changed between the two versions. It needs a bit of polish, but it's 50% there.