[gnome-builder] navigation: set the current item to the tip upon append().

[Christian Hergert <chergert src gnome org>]

commit af3686cb0d7f19dacc8e71fba8edd1a2832f1ad4
Author: Christian Hergert <christian hergert me>
Date:   Wed Sep 24 19:45:30 2014 -0700

    navigation: set the current item to the tip upon append().

 src/navigation/gb-navigation-list.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/navigation/gb-navigation-list.c b/src/navigation/gb-navigation-list.c
index 838993e..1bd5b7e 100644
--- a/src/navigation/gb-navigation-list.c
+++ b/src/navigation/gb-navigation-list.c
@@ -181,8 +181,7 @@ gb_navigation_list_append (GbNavigationList *list,
     }
 
   g_ptr_array_add (list->priv->items, g_object_ref_sink (item));
-
-  list->priv->current++;
+  list->priv->current = list->priv->items->len - 1;
 
   g_object_notify_by_pspec (G_OBJECT (list),
                             gParamSpecs [PROP_CURRENT_ITEM]);