From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jan Engelhardt <jengelh@computergmbh.de>
Subject: git-log segfault on 00 graft
Date: Tue, 4 Mar 2008 19:57:42 +0100 (CET)
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Hi,


I was playing a bit with grafts, and actually did this:

  echo '839affa3313011da783b5b8074a5c9805ee8503a 
0000000000000000000000000000000000000000' >.git/info/grafts

running `git log --topo-order` causes a segfault. Yes, I probably 
"should not be doing that", but I think it at least should not
segfault.