The if-else cases in lsqr.py were not exhaustive. They become exhaustive by changing ab > aa to ab >= aa.
From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Fri, 04 Apr 2008 16:17:10
Subject: properties changes (state)
Message-Id: <8aa25bcae639fc99-a4a82c4ab8c0f536-artemis@moscow>
References: <8aa25bcae639fc99-0-artemis@moscow>
In-Reply-To: <8aa25bcae639fc99-0-artemis@moscow>
state=fixed