Steps to reproduce:
1. 
2. 
3. 


Stack trace:


Other information:
abcdef@ghijkl:~$ f-spot
[Info  12:41:12.701] Initializing DBus
[Info  12:41:12.884] Initializing Mono.Addins
[Info  12:41:13.179] Starting new FSpot server

(f-spot:7362): Gtk-WARNING **: Theme directory scalable/animations/small/16x16 of theme oxygen has no size field


(f-spot:7362): Gtk-WARNING **: Theme directory scalable/animations/small/22x22 of theme oxygen has no size field

[Info  12:41:18.156] Starting BeagleService
[Info  12:41:18.156] Hack for gnome-settings-daemon engaged
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: Object reference not set to an instance of an object
  at FSpot.Tag.get_SizedIcon () [0x00000] 
  at TagSelectionWidget.IconDataFunc (Gtk.TreeViewColumn column, Gtk.CellRenderer renderer, TreeModel model, TreeIter iter) [0x00000] 
  at GtkSharp.TreeCellDataFuncWrapper.NativeCallback (IntPtr tree_column, IntPtr cell, IntPtr tree_model, IntPtr iter, IntPtr data) [0x00000] 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GtkSharp.TreeCellDataFuncWrapper.NativeCallback(IntPtr tree_column, IntPtr cell, IntPtr tree_model, IntPtr iter, IntPtr data)
   at GtkSharp.TreeCellDataFuncWrapper.NativeCallback(IntPtr , IntPtr , IntPtr , IntPtr , IntPtr )
   at Gtk.Application.gtk_main()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Gnome.Program.Run()
   at FSpot.Driver.Mai