[f-spot] Fix crash in Gallery-Export startup

[Ruben Vermeersch <rubenv src gnome org>]

commit c0a63765a7e090cd744af76b0a53b1054aad364f
Author: Mike Gemünde <mike gemuende de>
Date:   Wed Jun 2 19:08:45 2010 +0200

    Fix crash in Gallery-Export startup
    
    A wrong cast prevented the Gallery export window from starting up.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=620379

 .../Exporters/GalleryExport/GalleryExport.cs       |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/extensions/Exporters/GalleryExport/GalleryExport.cs b/extensions/Exporters/GalleryExport/GalleryExport.cs
index ed89907..daff764 100644
--- a/extensions/Exporters/GalleryExport/GalleryExport.cs
+++ b/extensions/Exporters/GalleryExport/GalleryExport.cs
@@ -618,7 +618,7 @@ namespace G2Export {
 			export_dialog = (Gtk.Dialog) xml.GetWidget ("gallery_export_dialog");
 
 			this.items = selection.Items;
-			Array.Sort<IBrowsableItem> (this.items as Photo[], new IBrowsableItemComparer.CompareDateName());
+			Array.Sort<IBrowsableItem> (this.items, new IBrowsableItemComparer.CompareDateName());
 			album_button.Sensitive = false;
 			IconView view = new IconView (selection);
 			view.DisplayDates = false;