FAIL: test_modifyClass
(test.test_metakit.metakitSchemaTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "E:\usr\src\roundup-0.7\.\test\db_test_base.py",
line 1224, in test_modifyClass
    self.assertEqual(self.db.a.get(aid, 'newnum'), None)
  File "E:\Python23\lib\unittest.py", line 302, in
failUnlessEqual
    raise self.failureException, \
AssertionError: 0 != None

(in 0.8, 0.0 != None).

this is documented behaviour for metakit backend if
BACKWARDS_COMPATIBLE is set (default).

test case needs to be fixed.  better yet, both
BACKWARDS_COMPATIBLE and not BACKWARDS_COMPATIBLE modes
should be tested.

discussion: change default setting to disable
compatibility mode?