[PATCH 1 of 4] dirstate: make restoring from backup avoid ambiguity of file stat

[Yuya Nishihara]

On Mon, 13 Jun 2016 05:15:18 +0900, FUJIWARA Katsunori wrote:
> # HG changeset patch
> # User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
> # Date 1465762316 -32400
> #      Mon Jun 13 05:11:56 2016 +0900
> # Node ID f4cf29d6dd97a6cf319cbdeef08dc84b2418819a
> # Parent  c27dc3c31222c7f74331221a3d25566146feecac
> dirstate: make restoring from backup avoid ambiguity of file stat

LGTM, queued the first three, thanks.