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From:   Junio C Hamano <gitster@pobox.com>
To:     Jeff King <peff@peff.net>
Cc:     Jacob Keller <jacob.keller@gmail.com>,
        Josh Triplett <josh@joshtriplett.org>,
        Git mailing list <git@vger.kernel.org>
Subject: Re: Regarding "git log" on "git series" metadata
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Date:   Fri, 04 Nov 2016 22:00:17 -0700
In-Reply-To: <xmqq60o2edy5.fsf@gitster.mtv.corp.google.com> (Junio C. Hamano's
        message of "Fri, 04 Nov 2016 21:41:06 -0700")
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Junio C Hamano <gitster@pobox.com> writes:

>> I think the main complication is that the reachability rules are used
>> during object transfer.

One should not type after spending 20+ waking hours on plane and
airport.  I missed it when I wrote my first response, but yes, the
reachability that originates from inside a tree object indeed is a
problem, as we do not dig into trees while doing the want/have/ack
exhange.