Re: [PATCH] git-bisect.sh: don't accidentally override existing branch "bisect"

> If a branch named "bisect" or "new-bisect" already was created in
> the repo by other means than git bisect, doing a git bisect used to
> override the branch without a warning. Now if the branch "bisect" or
> "new-bisect" already exists, and it was not created by git bisect
> itself, git bisect start fails with an appropriate error message.
> Additionally, if checking out a new bisect state fails due to a
> merge problem, git bisect cleans up the temporary branch
> "new-bisect".