[PATCH STABLE] rebase: improve base revset performance

[Matt Mackall]

On Mon, 2014-10-20 at 19:11 -0700, Durham Goode wrote:
> # HG changeset patch
> # User Durham Goode <durham at fb.com>
> # Date 1413856209 25200
> #      Mon Oct 20 18:50:09 2014 -0700
> # Node ID 1a9990727f5d75d70bb0d00fdffac571449574b6
> # Parent  67cb1ab1ad1db6a66b96ac0c0333256b5383a3a2
> rebase: improve base revset performance

Queued for stable, thanks.

-- 
Mathematics is the supreme nostalgia of our time.