[PATCH 1 of 2 STABLE] phases: fix `nullid` reference in newheads

[Yuya Nishihara]

On Tue, 21 Aug 2018 13:35:26 +0200, Boris Feld wrote:
> # HG changeset patch
> # User Boris Feld <boris.feld at octobus.net>
> # Date 1534580656 -7200
> #      Sat Aug 18 10:24:16 2018 +0200
> # Branch stable
> # Node ID 9c019032b49e561cefe8350cdcb51f6ab633caac
> # Parent  cee9043c7dba154af10cf2817190f8c1ed62de62
> # EXP-Topic perf-phases
> # Available At https://bitbucket.org/octobus/mercurial-devel/
> #              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r 9c019032b49e
> phases: fix `nullid` reference in newheads

Queued, thanks.