revset: fix ordering issue of "svnrev()" This is subtle. See https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-August/103368.html for the context. Basically, `subset & x` (instead of `x & subset`) should be used to make order correct given the current revset API.

#!/bin/sh
. $(dirname $0)/common.sh

for b in `hg branches -aq` ; do
    hg co $b || break
    echo verifying $b
    hg svn verify
done