The reason is that modifications made into the DOM tree by the ws-sec handler are not used at all ...
Date: Mon Feb 5 07:46:44 2007
New Revision: 503730
SM-832: Ws-Security signature does not work for outbound
Date: Tue Feb 13 02:27:18 2007
New Revision: 506957
SM-382: Ws-Security signature does not work for outbound