Martin von Zweigbergk <martinvonz@google.com> [Sun, 17 Jun 2018 23:49:27 -0700] rev 38404
upgrade: close progress after each revlog
IIUC, one is supposed to close each progress topic before strarting a
new one. Otherwise the topics are considered nested, which we don't
want here.
Differential Revision: https://phab.mercurial-scm.org/D3799