For the following two merged bugs, I got in the 2 mail messages:
From: Debian Bug Tracking System <owner@bugs.debian.org>
To: Vincent Lefevre <vincent@vinc17.org>
Subject: Bug#506472 closed by Sandro Tosi <morph@debian.org> (Bug#630586: fixed
in reportbug 6.2)
Date: Mon, 29 Aug 2011 22:36:32 +0000
This is an automatic notification regarding your Bug report
which was filed against the reportbug package:
#630586: reportbug: undetected newer versions at packages.debian.org
[...]
and
From: Debian Bug Tracking System <owner@bugs.debian.org>
To: Vincent Lefevre <vincent@vinc17.net>
Subject: Bug#630586 closed by Sandro Tosi <morph@debian.org> (Bug#630586: fixed
in reportbug 6.2)
Date: Mon, 29 Aug 2011 22:36:32 +0000
This is an automatic notification regarding your Bug report
which was filed against the reportbug package:
#630586: reportbug says "Your version of iceweasel-dbg (3.5.19-2) is newer than that in Debian!" - Wrong!
[...]
The bug number in the body of the first mail is incorrect.