Re: rev-parse --show-toplevel broken during exec'ed rebase?

> Vitali Lovich <vlovich@gmail.com> writes:
> 
> > Repro (starting with cwd within git project):
> >> (cd xdiff; git rev-parse --show-toplevel)
> > ... path to git repository
> >> git rebase -i 18404434bf406f6a6f892ed73320c5cf9cc187dd
> > # Stop at some commit for editing
> >> (cd xdiff; git rev-parse --show-toplevel)
> > ... path to git repository
> >> git rebase 18404434bf406f6a6f892ed73320c5cf9cc187dd -x "(cd xdiff; git rev-parse --show-toplevel)"
> > ... path to git repository/xdiff !!!
> >
> > This seems like incorrect behaviour to me since it's a weird
> > inconsistency (even with other rebase contexts) & the documentation
> > says "Show the absolute path of the top-level directory." with no
> > caveats.
> 
> Does it reproduce with older rebase (say from v2.10 days), too?