Re: Cannot checkout a branch / worktree shows multiple branches for the same directory

[Eric Sunshine <sunshine@sunshineco.com>]

On Thu, Apr 14, 2016 at 3:51 PM, Krzysztof Voss <k.voss@usask.ca> wrote:
> I stumbled upon an interesting problem when checking out a branch.
> I had to switch to a testing branch to merge in some changes from yet
> another branch, but when I tried to check out the testing branch I got
> a message saying that I'm already on the target branch.
>
> I used worktree a few times, but the checkouts were always in their
> own directories.
> It crossed my mind that this behaviour may be related, so I took a
> look at the worktree list and noticed that according to that list
> there are three branches at the same time in one directory.
>
> It may be a conicidence and I have no confidence in saying that these
> issues are related.
> Can someone shed some light on this issue for me?
>
>     $ git --version
>     git version 2.7.0.235.g07c314d
>
>     $ git worktree list
>     /home/k/workspace/moyo  7c5edaa [ticket-22444]
>     /var/home/k/moyo-lsf  349613d (detached HEAD)
>     /home/k/workspace/moyo  265b7f9 (detached HEAD)
>     /home/k/workspace/moyo  c852282 [testing]

Did you manually move any of your worktrees? If so, perhaps this a
manifestation of the problem where .git/worktrees/<id>/gitdir got
incorrectly "refreshed" following the move. This issue was "addressed"
by 618244e (worktree: stop supporting moving worktrees manually,
2016-01-22)[1], which is in git 2.7.2.

Unfortunately, if your gitdir files are already corrupt, upgrading to
git 2.7.2 won't recover them; you'll have to fix them manually as
described by the documentation update included with 618244e[1].

[1]: http://thread.gmane.org/gmane.comp.version-control.git/284284/focus=284551