SugarCommander fails to start if journal is empty

[alsroot]

|TestCase|

• start with empty journal
• launch SugarCommander-4
• it fails to start

1273091607.449096 DEBUG root: *** Act a582503775d154222b01603eccd85dbbf9666e95, mesh instance None, scope private

** (sugar-activity:15149): WARNING **: expected enumeration type PangoWrapMode, but got GtkWrapMode instead
1273091607.676649 DEBUG root: Activity.__canvas_map_cb
1273091607.679863 DEBUG root: PaletteWindow.popdown immediate True
1273091607.684757 DEBUG root: PaletteWindow.popdown immediate True
1273091607.687717 WARNING root: No gtk.AccelGroup in the top level window.
1273091607.690582 WARNING root: No gtk.AccelGroup in the top level window.
/usr/lib64/python2.6/site-packages/sugar/graphics/window.py:290: DeprecationWarning: use toolbar_box instead of toolbox
  warnings.warn('use toolbar_box instead of toolbox', DeprecationWarning)
Traceback (most recent call last):
  File "/usr/bin/sugar-activity", line 21, in <module>
    main.main()
  File "/usr/lib64/python2.6/site-packages/sugar/activity/main.py", line 152, in main
    create_activity_instance(activity_constructor, activity_handle)
  File "/usr/lib64/python2.6/site-packages/sugar/activity/main.py", line 37, in create_activity_instance
    activity = constructor(handle)
  File "/home/me/Activities/SugarCommander.activity/sugarcommander.py", line 234, in __init__
    self.load_journal_table()
  File "/home/me/Activities/SugarCommander.activity/sugarcommander.py", line 469, in load_journal_table
    return ds_objects[0]
IndexError: list index out of range
1273091607.699952 DEBUG root: _cleanup_temp_files
Exited with status 1, pid 15149 data (None, <open file '<fdopen>', mode 'w' at 0x21ab828>, 'a582503775d154222b01603eccd85dbbf9666e95')