Martin von Zweigbergk <martinvonz@gmail.com> [Sat, 11 Oct 2014 22:43:14 -0700] rev 22927
subrepo: use separate instances of empty lists in status
We do modify the lists that make up the status in several places, so
it seems risky to use the same instance of a list for several
different status types. Use a separate empty list for each type
instead.