[PATCH] Allow multiple date-ordered lists

Make pop_most_recent_commit() return the same objects multiple times, but only
if called with different bits to mark.

This is necessary to make merge-base work again.

Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>