rebase: make sure we don't loose the return code in --confirm option
return _dorebase() to make sure it returns 'return code'.
Differential Revision: https://phab.mercurial-scm.org/D3938
Martin von Zweigbergk <martinvonz@google.com> [Wed, 11 Jul 2018 15:12:01 -0700] rev 38673
rebase: use revnums (not nodes) for set of extinct revisions
There is no need to convert extinct revisions to nodeids.
Differential Revision: https://phab.mercurial-scm.org/D3942