Traceback (most recent call last):
  File "/Users/vajda/osaf/osaf/chandler/application/Application.py", line 803, in OnIdle
    self.propagateAsynchronousNotifications()
  File "/Users/vajda/osaf/osaf/chandler/application/Application.py", line 789, in propagateAsynchronousNotifications
    block.synchronizeWidget(useHints=True)
  File "/Users/vajda/osaf/osaf/chandler/parcels/osaf/framework/blocks/Block.py", line 817, in synchronizeWidget
    IgnoreSynchronizeWidget(True, method, widget, useHints)
  File "/Users/vajda/osaf/osaf/chandler/parcels/osaf/framework/blocks/Block.py", line 79, in IgnoreSynchronizeWidget
    result = method(*args, **kwds)
  File "/Users/vajda/osaf/osaf/chandler/parcels/osaf/framework/blocks/calendar/CalendarBlocks.py", line 88, in wxSynchronizeWidget
    self.setFreeBusy(None, useHints)
  File "/Users/vajda/osaf/osaf/chandler/parcels/osaf/framework/blocks/calendar/CalendarBlocks.py", line 118, in setFreeBusy
    addedEvents = self.GetPendingNewEvents((start, end))
  File "/Users/vajda/osaf/osaf/chandler/parcels/osaf/framework/blocks/calendar/CalendarCanvas.py", line 947, in GetPendingNewEvents
    addedEvents.update(event.getOccurrencesBetween(startTime, endTime))
AttributeError: 'list' object has no attribute 'update'