alphashapes2d can handle degenerate inputs (thanks to Taras Galkovskyi for the bug report and the fix)
From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Thu, 21 Feb 2008 04:54:00 -0500
State: fixed
Subject: Segfault in tests/geometry/test-kinetic-sort.cpp
Message-Id: <b5d8a8403ae3a0d2-0-artemis@metatron>
test-kinetic-sort segfaults when we subscribe to geometry/simulator RLog channel.