From: Junio C Hamano <junkio@cox.net>
Date: Tue, 16 May 2006 06:13:12 GMT
Subject: Re: [PATCH] Update the documentation for git-merge-base
Message-ID: <7vhd3qebuv.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <20060516055815.GA4572@c165.ib.student.liu.se>

Fredrik Kuivinen <freku045@student.liu.se> writes:

> Is the code guaranteed to return a least common ancestor? If that is
> the case we should probably mention it in the documentation.

Unfortunately, no, if you mean by "least common" closest to the
tips.

See the big illustration at the top of the source for how you
can construct pathological case to defeat an attempt to
guarantee such.  --all guarantees that the output contains all
interesting ones, but does not guarantee the output has no
suboptimal merge bases.