On Mon, Aug 27, 2007 at 12:07:39AM -0700, Junio C Hamano [off-list ref] wrote:
Both semantics of two-dot form and three-dot form are useful,
and choice between the two depends on what you want out of the
command. You just need to know which one you want.
The problem is not about usefulness of these 2 forms, but consistency
with the rest of the tools.
If I go git log a..b, I won't get the set of commits involved in
git diff a..b. In fact, git log a...b does. And git log a..b gives the
commits involved in git diff a...b. Confusing, isn't it ?
Moreover, this inconsistency isn't even documented in the manual pages.
Mike