[rhythmbox] shell: Fix another clipboard warning

[Bastien Nocera <hadess src gnome org>]

commit dc221628559f764c40582709b2048c3b56cc99e4
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 24 17:23:46 2011 +0000

    shell: Fix another clipboard warning

 shell/rb-shell-clipboard.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/shell/rb-shell-clipboard.c b/shell/rb-shell-clipboard.c
index 144dc4d..afe5e4e 100644
--- a/shell/rb-shell-clipboard.c
+++ b/shell/rb-shell-clipboard.c
@@ -976,7 +976,7 @@ add_playlist_to_menu (GtkTreeModel *model,
 	 */
 	g_object_get (clipboard->priv->source, "entry-type", &entry_type, NULL);
 	g_object_get (page, "entry-type", &source_entry_type, NULL);
-	if (source_entry_type != entry_type) {
+	if (source_entry_type != entry_type || source_entry_type == NULL) {
 		g_object_unref (page);
 		if (entry_type)
 			g_object_unref (entry_type);