[mike@localhost koji]$ lkoji call createEmptyBuild test 2.x 1.y None
466
[mike@localhost koji]$ lkoji call resetBuild test-2.x-1.y
None
[mike@localhost koji]$ lkoji call createEmptyBuild test 2.x 1.y None
Traceback (most recent call last):
  File "/home/mike/Devel/koji/koji/cli2/lkoji", line 336, in <module>
    rv = locals()[command].__call__(options, session, args)
  File "/home/mike/Devel/koji/koji/cli/koji_cli/commands.py", line 876, in handle_call
    response = getattr(session, name).__call__(*non_kw, **kw)
  File "/home/mike/Devel/koji/koji/koji/__init__.py", line 2090, in __call__
    return self.__func(self.__name, args, opts)
  File "/home/mike/Devel/koji/koji/koji/__init__.py", line 2594, in _callMethod
    raise err
xmlrpclib.Fault: <Fault 1: "<class 'KeyError'>: 'cg_id'">