Comment 2 for bug 505673

Pedro, this is the output of alacarte command (I pressed the properties button if calculator item):

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/Alacarte/MainWindow.py", line 434, in on_item_tree_show_toggled
    self.editor.setVisible(item, False)
  File "/usr/lib/pymodules/python2.6/Alacarte/MenuEditor.py", line 200, in setVisible
    self.__addUndo([self.__getMenu(item), item])
  File "/usr/lib/pymodules/python2.6/Alacarte/MenuEditor.py", line 428, in __addUndo
    undo_path = util.getUniqueUndoFile(file_path)
  File "/usr/lib/pymodules/python2.6/Alacarte/util.py", line 109, in getUniqueUndoFile
    filename, extension = os.path.split(filepath)[1].rsplit('.', 1)
ValueError: need more than 1 value to unpack
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/Alacarte/MainWindow.py", line 625, in on_properties_button_clicked
    self.on_edit_properties_activate(None)
  File "/usr/lib/pymodules/python2.6/Alacarte/MainWindow.py", line 379, in on_edit_properties_activate
    self.editor._MenuEditor__addUndo([item,])
  File "/usr/lib/pymodules/python2.6/Alacarte/MenuEditor.py", line 428, in __addUndo
    undo_path = util.getUniqueUndoFile(file_path)
  File "/usr/lib/pymodules/python2.6/Alacarte/util.py", line 109, in getUniqueUndoFile
    filename, extension = os.path.split(filepath)[1].rsplit('.', 1)
ValueError: need more than 1 value to unpack