[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>

commit.h

@@ -31,6 +31,7 @@ void sort_by_date(struct commit_list **list);
 /** Removes the first commit from a list sorted by date, and adds all
  * of its parents.
  **/
-struct commit *pop_most_recent_commit(struct commit_list **list);
+struct commit *pop_most_recent_commit(struct commit_list **list, 
+				      unsigned int mark);
 
 #endif /* COMMIT_H */