[gnome-photos] view-model: Don't use a possibly stale row reference

[Debarshi Ray <debarshir src gnome org>]

commit 5fd18021d1528a04781b051f591294c673d6d395
Author: Debarshi Ray <debarshir gnome org>
Date:   Sun Apr 14 15:25:48 2013 +0200

    view-model: Don't use a possibly stale row reference
    
    The row reference will be invalid if the item was removed from the
    model.

 src/photos-view-model.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/photos-view-model.c b/src/photos-view-model.c
index 8af1491..7519418 100644
--- a/src/photos-view-model.c
+++ b/src/photos-view-model.c
@@ -150,6 +150,7 @@ photos_view_model_info_updated (PhotosBaseItem *item, gpointer user_data)
         photos_view_model_add_item (self, item);
     }
 
+  row_ref = (GtkTreeRowReference *) g_object_get_data (G_OBJECT (item), priv->row_ref_key);
   if (row_ref != NULL)
     {
       path = gtk_tree_row_reference_get_path (row_ref);