logilab-astng #9891 help(logilab.astng) throws TypeError [resolved]

>>> import logilab.astng
>>> help(logilab.astng)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.5/site.py", line 342, in __call__
  return pydoc.help(*args, **kwds)
File "/usr/lib/python2.5/pydoc.py", line 1647, in __call__
  self.help(request)
File "/usr/lib/python2.5/pydoc.py", line 1691, in help
  else: doc(request, 'Help on %s:')
File "/usr/lib/python2.5/pydoc.py", line 1482, in doc
  pager(title % desc + '\n\n' + text.document(object, name))
File "/usr/lib/python2.5/pydoc.py", line 324, in document
  if inspect.ismodule(object): return self.docmodule(*args)
File "/usr/lib/python2.5/pydoc.py", line 1071, in docmodule
  inspect.getclasstree(classlist, 1), name)]
File "/usr/lib/python2.5/inspect.py", line 656, in getclasstree
  for parent in c.__bases__:
TypeError: '_Yes' object is not iterable
prioritynormal
typebug
done in0.19.1
load0.200
load left0.000
closed by<not specified>