Index: trunk/src/change.c
===================================================================
--- trunk/src/change.c	(revision 29891)
+++ trunk/src/change.c	(revision 29892)
@@ -917,6 +917,8 @@
 		}
 		*slot = ca->value;
 		new_val = ca->value;
+		if (ca->obj->Attributes.post_change != NULL)
+			ca->obj->Attributes.post_change(&ca->obj->Attributes, ca->key, ca->value);
 	}
 	else {
 		*slot = NULL;