notify: fix fromauthor setting for 'incoming' hook type (
issue4194)
Set the author field in notification emails for the 'incoming' hook type
in addition to 'changegroup' and 'outgoing' types.
$ hg init
$ echo This is file a1 > a
$ hg add a
$ hg commit -m "commit #0"
$ ls
a
$ echo This is file b1 > b
$ hg add b
$ hg commit -m "commit #1"
$ hg co 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
B should disappear
$ ls
a