If variables were accidentally carried through from a previous calculated plan,
subsequent plan could be affected. This test aims to detect if this happens.
Commit 8994270 corrected such a bug. If it were reverted, this test would fail
(as it should).
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
084b4152e4