Re: [PATCH] checkout: Don't crash when switching away from an invalid branch.

Alexandre Julliard [off-list ref] writes:

Johannes Schindelin [off-list ref] writes:
...

quoted

Why not
		old_desc ? old_desc : "(invalid)"
?

IMO it looks more friendly to not display a branch that doesn't exist,
rather than printing something like (invalid) or (null).

Actually I think it is a good idea to remind that you were in a funny
state.

For that matter, dying without removing the trace of that funny state
might be even preferrable if you need to do postmortem to figure out why
you got into such a funny state to begin with, but not everybody uses git
to debug git.  I think Dscho's suggestion is a reasonable middle ground.