Re: [long] worktree setup cases

Hi again,

One correction.

Jonathan Nieder wrote:

 - if GIT_DIR was set explicitly, GIT_WORK_TREE defaults to
   "." (for legacy reasons).

In this case GIT_WORK_TREE defaults to the original cwd.
GIT_WORK_TREE=. would have meant work tree == git dir, which
is wrong.

Sorry for the noise.