From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jonathan Nieder <jrnieder@gmail.com>
Subject: Re: clone breaks replace
Date: Fri, 7 Jan 2011 15:34:26 -0600
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Jonathan Nieder wrote:

> Transport machinery needs to ignore grafts --- otherwise, the two ends
> of a connection could have different ideas of the history preceding a
> commit, resulting in confusion and breakage.  A fix to that was
> finally grafted on a few years later (see also [2]).

Sorry, I walked away mid-paragraph and left out a crucial piece when I
returned.  Because transport machinery ignores grafts, garbage
collection must make sure not to remove pieces of the non-artificial
history.  It is the garbage collection that Dscho fixed with
v1.6.4-rc3~7^2.

Sorry for the nonsense.