gnue-forms absolute.gfd fatal error

gnue-forms absolute.gfd fatal-error with common & forms from bazaar.
FWIW.  It renders the window before the fatal error, so I can see what
it is supposed to look like.
/Randall

 env PYTHONPATH=.bzrdevelbase python forms/scripts/gnue-forms forms/samples/layout/absolute.gfd

Traceback (most recent call last):
  File "forms/scripts/gnue-forms", line 34, in <module>
    client.run ()
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFClient.py", line 197, in run
    instance.run_from_file(formfile, userParameters)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFInstance.py", line 276, in run_from_file
    self.__run(form, parameters)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFInstance.py", line 376, in __run
    form.execute_open(False)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFForm.py", line 455, in execute_open
    self.uiWidget._ui_open_(modal)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/uidrivers/wx/widgets/form.py", line 261, in _ui_open_
    self._form._event_open()
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFForm.py", line 469, in _event_open
    block.populate()
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFBlock.py", line 535, in populate
    self.clear()
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFBlock.py", line 690, in clear
    self._dataSourceLink.createEmptyResultSet()
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/common/datasources/GDataSource.py", line 678, in createEmptyResultSet
    self._activateResultSet (resultSet)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/common/datasources/GDataSource.py", line 767, in _activateResultSet
    resultSet = resultSet)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/common/events/EventController.py", line 156, in dispatch_event
    handler(event)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFBlock.py", line 373, in __ds_resultset_activated
    self.__current_record_changed(True)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFBlock.py", line 1479, in __current_record_changed
    self.__switch_record(None, refresh_all)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFBlock.py", line 1528, in __switch_record
    self.__record_count, refresh)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFTabStop.py", line 317, in recalculate_visible
    self.__update_status(refresh_start)
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFTabStop.py", line 351, in __update_status
    self.getParent().update_status()
  File "/home/randall/Src/Gnue/gnue/tools/.bzrdevelbase/gnue/forms/GFObjects/GFContainer.py", line 135, in update_status
    self.uiWidget._ui_set_enabled_(self.ui_enabled)
AttributeError: 'UIBox' object has no attribute '_ui_set_enabled_'