F-spot crashes when I try to select a photo

I have been sorting my photos into different tags. When I select one of the tags instead of thumbnails I see small globes (the icon for the tag) and if I click on one of the globes f-spot crashes.
Running from terminal shows :
[Info 16:48:06.181] Initializing Mono.Addins

(f-spot:6004): GdkPixbuf-WARNING **: GdkPixbufLoader finalized without calling gdk_pixbuf_loader_close() - this is not allowed. You must explicitly end the data stream to the loader before dropping the last reference.
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.ArgumentNullException: Argument cannot be null.
Parameter name: stringToUnescape
  at System.Uri.UnescapeDataString (System.String stringToUnescape) [0x00000] in <filename unknown>:0
  at FSpot.Photo.get_Name () [0x00000] in <filename unknown>:0
  at FSpot.Widgets.InfoBox.UpdateSingle () [0x00000] in <filename unknown>:0
  at FSpot.Widgets.InfoBox.Update () [0x00000] in <filename unknown>:0
  at FSpot.Utils.DelayedOperation.HandleOperation () [0x00000] in <filename unknown>:0
  at GLib.Idle+IdleProxy.Handler () [0x00000] in <filename unknown>:0
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.Idle+IdleProxy.Handler()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at FSpot.Driver.Startup()
   at Hyena.Gui.CleanRoomStartup.Startup(Hyena.Gui.StartupInvocationHandler startup)
   at FSpot.Driver.Main(System.String[] args)

Same happens if I try to view photos in a slideshow.