[PATCH STABLE] rebase: fix rebase aborts when tip^ is public (issue4082)

[Siddharth Agarwal]

On 11/04/2013 08:09 PM, Durham Goode wrote:
> # HG changeset patch
> # User Durham Goode <durham at fb.com>
> # Date 1383623940 28800
> #      Mon Nov 04 19:59:00 2013 -0800
> # Branch stable
> # Node ID f3a3d9b9243ccdc3fdcf07f76547098863ae83c3
> # Parent  7c4cf8367673e3100cda62927b096cdd9497a409
> rebase: fix rebase aborts when tip^ is public (issue4082)

I think this would be rev -2 (i.e. rev number 1 less than tip), which 
isn't always tip^.