[mutter] clutter/actor-meta: Notify actor property on changes

[Marge Bot <marge-bot src gnome org>]

commit 6c8e8fbba45ce881871f478cd65dc8aafe2aef09
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Sun Apr 10 22:46:12 2022 +0200

    clutter/actor-meta: Notify actor property on changes
    
    Seems like this was forgotten when writing the class. While at it, add
    EXPLICIT_NOTIFY to the property flags.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2377>

 clutter/clutter/clutter-actor-meta.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/clutter/clutter/clutter-actor-meta.c b/clutter/clutter/clutter-actor-meta.c
index 02bbc0135d..8b564eadef 100644
--- a/clutter/clutter/clutter-actor-meta.c
+++ b/clutter/clutter/clutter-actor-meta.c
@@ -109,6 +109,8 @@ clutter_actor_meta_real_set_actor (ClutterActorMeta *meta,
     priv->destroy_id = g_signal_connect (priv->actor, "destroy",
                                          G_CALLBACK (on_actor_destroy),
                                          meta);
+
+  g_object_notify_by_pspec (G_OBJECT (meta), obj_props[PROP_ACTOR]);
 }
 
 static void
@@ -213,7 +215,8 @@ clutter_actor_meta_class_init (ClutterActorMetaClass *klass)
                          P_("Actor"),
                          P_("The actor attached to the meta"),
                          CLUTTER_TYPE_ACTOR,
-                         CLUTTER_PARAM_READABLE);
+                         CLUTTER_PARAM_READABLE |
+                         G_PARAM_EXPLICIT_NOTIFY);
 
   /**
    * ClutterActorMeta:name: