[PATCH 1 of 4 V2] destutil: explicitly remove descendants from destmerge candidates

[Martin von Zweigbergk]

On Sun, Feb 14, 2016 at 7:38 AM, Pierre-Yves David
<pierre-yves.david at ens-lyon.org> wrote:
> # HG changeset patch
> # User Pierre-Yves David <pierre-yves.david at fb.com>
> # Date 1454951526 -3600
> #      Mon Feb 08 18:12:06 2016 +0100
> # Node ID 0ffdd65816fcde6f970e60830fad8aa0bc67b970
> # Parent  2c83ae6c59cbd509633475c3117c15de3595eff7
> # EXP-Topic destination
> # Available At http://hg.netv6.net/marmoute-wip/mercurial/
> #              hg pull http://hg.netv6.net/marmoute-wip/mercurial/ -r 0ffdd65816fc
> destutil: explicitly remove descendants from destmerge candidates

As we talked about on IRC, I'm changing this to "destutil: remove
current head from list of candidates early" in flight.