Martin von Zweigbergk <martinvonz@google.com> [Mon, 15 Jul 2019 16:53:07 -0700] rev 4725
tests: update output for new branch cache messsages from Mercurial
This makes tests pass again after Mercurial commit c7d236b55a3e (py3:
fix formatting of branchmap log messages with repo.filtername=None,
2019-07-14).
CORE-TEST-OUTPUT-UPDATE: c7d236b55a3e
metaedit: allow operations on merge commits with some conditions
As with fold (see the previous patch), it's allowed to metaedit a merge commit
or a set of commits including merge commits (with --fold) as long as there are
less than 2 parents of the set not included in the said set.