Adding another constructor to the SOAPModelBuilder to work without the SOAPVersion from the transport... Anyway we've been using the SOAPVersion only to validate the Transport level version with the Envelope version..In this case we expect the external parties to do that validation..
webservices/commons/trunk/modules/axiom/modules/axiom-api/src/main/java/org/apache/axiom/soap/impl/builder/MTOMStAXSOAPModelBuilder.java