iconhelper: treat the empty string as a NULL stock-id

https://bugzilla.gnome.org/show_bug.cgi?id=687025

diff --git a/gtk/gtkiconhelper.c b/gtk/gtkiconhelper.c
index 74eae6901d61efeb132ba18b570022a4e8acadd8..10ce2493dee3f6f534aab929cdc6d73f5a7be474 100644 (file)
--- a/gtk/gtkiconhelper.c
+++ b/gtk/gtkiconhelper.c
@@ -469,7 +469,8 @@ _gtk_icon_helper_set_stock_id (GtkIconHelper *self,
 {
   _gtk_icon_helper_clear (self);
 
-  if (stock_id != NULL)
+  if (stock_id != NULL &&
+      g_strcmp0 (stock_id, "") != 0)
     {
       self->priv->storage_type = GTK_IMAGE_STOCK;
       self->priv->stock_id = g_strdup (stock_id);