Newbie question regarding 3way merge order.

["Raimund Berger" <raimund.berger@gmail.com>]

Hi guys

I got a dumb question for you to wholeheartedly laugh at, and to which
the answer seems to be so self evident. I'd still like a possibly
authoritative statement though, just for the books.

The question is whether a (3way) merge is commutative, purely in terms
of content (i.e. disregarding commit history for now). Iow if no matter
in which order I merge A and B, i.e. A into B or B into A, I'd be
guaranteed to arrive at the same content.

If yes, a followup question would be if the merge machinery sitting
beneath rebase is exactly the same as that of a standard merge.

The reason I ask is obvious I guess. What basically interests me is if I
gave a bunch of topic branches exposure on a test branch and, after
resolving issues, applied them to stable, that I could be 100% sure to
not introduce new issues content wise just by applying merges in a
different order or form (rebase, patch set).

Thanks for feedback, Raimund.