Linus and Junio explained issues that are involved in reverting a merge
and how to continue working with a branch that was updated since such a
revert on the mailing list. This is to help new people who did not see
these messages.
Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>