[clutter/clutter-1.16] Extra ref leak in clutter_actor_set_child_at_index too

[Emmanuele Bassi <ebassi src gnome org>]

commit e54246dd6957c45fe8ee4005c11d055e4c02f57e
Author: Craig R. Hughes <craig git rungie com>
Date:   Thu Mar 28 14:01:04 2013 -0700

    Extra ref leak in clutter_actor_set_child_at_index too
    
    https://bugzilla.gnome.org/show_bug.cgi?id=696813

 clutter/clutter-actor.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/clutter/clutter-actor.c b/clutter/clutter-actor.c
index 889aa71..5ebb22e 100644
--- a/clutter/clutter-actor.c
+++ b/clutter/clutter-actor.c
@@ -13400,6 +13400,7 @@ clutter_actor_set_child_at_index (ClutterActor *self,
                                     ADD_CHILD_NOTIFY_FIRST_LAST,
                                     insert_child_at_index,
                                     GINT_TO_POINTER (index_));
+  g_object_unref (child);
 
   clutter_actor_queue_relayout (self);
 }