Possible change to the "git push" behavior

[Angel Ezquerra Moreu]

It seems that the Git project is considering changing the default
behavior for the "git push" command (http://lwn.net/Articles/487131).

Since mercurial bookmarks are meant (AFAIK) to behave similarly to git
branches, would mercurial change the way bookmarks work if git changes
the way git branches work? How would that work given mercurial's
backwards compatibility policy?

Angel