koen@bitbake:/data/build/oe/bbsvn/trunk/bitbake_qa$ bin/bittest 
NOTE: Running the following tests: ['patch_checker', 'source_checker']
NOTE: Collected 2370 BitBake files
Traceback (most recent call last):
  File "bin/bittest", line 237, in ?
    start_testing()
  File "bin/bittest", line 231, in start_testing
    results = run_tests(data, test_config, test_options, tests)
  File "bin/bittest", line 147, in run_tests
    test_data = bb.data.createCopy(data)
AttributeError: 'module' object has no attribute 'createCopy'