Re: [BUG] 'diff A...B' fails with multiple merge bases

Sverre Rabbelier [off-list ref] writes:

On Mon, Jul 12, 2010 at 19:45, Junio C Hamano [off-list ref] wrote:

quoted

This will trigger only when you did something random like this.

   $ git diff ^maint master ^next ^pu sr/frotz..

What else would you say against such an input?

Something like "too many arguments, please specify at most two commits
to diff against"?

The first part is correct, but the advice is not quite, as you are
forbidding the combined diff to emulate "git show --cc pu" to view a
merge at the tip of "pu" with

    git diff --cc pu pu~1 pu~2

which obviously has to allow three commits.