STATUS: FAILED
BUILD: master:176a46b088135f2891983bb8540bc45389341d90
ENVIRONMENT: Ubuntu 12.04 x86_64
STEPS TO REPRODUCE: 
1. prepare poky build environment
2. create a folder, for example, test
3. run "bitbake-layers flatten test", all contents of all layers should 
be moved into the test folder, with any bbappends appended to 
corresponding recipes

Notice error:

cornel@NODE1:~/SSD/poky/build$ bitbake-layers flatten test
Parsing recipes..done.
Traceback (most recent call last):
  File "/home/cornel/SSD/poky/bitbake/bin/bitbake-layers", line 720, in <module>
    sys.exit(main(sys.argv[1:]) or 0)
  File "/home/cornel/SSD/poky/bitbake/bin/bitbake-layers", line 50, in main
    cmds.onecmd(' '.join(args))
  File "/usr/lib/python2.7/cmd.py", line 221, in onecmd
    return func(arg)
  File "/home/cornel/SSD/poky/bitbake/bin/bitbake-layers", line 374, in do_flatten
    for f in self.bbhandler.cooker.overlayed.iterkeys():
AttributeError: BBCooker instance has no attribute 'overlayed'