MTOM signature bug

SOAPUI calculates the XML signature wrongly when using MTOM attachments. The body digest is based on the message in XML view (including the string "cid:749983768919" and not the attachment). The correct implementation should inline the attachment (cid:749983768919) as base64 string into the <v11:BinaryContent> tag and calculate the digest on that message.

<soapenv:Body wsu:Id="id-body" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<v1:MtomSecuredMessageRequest>
<v11:Value>test</v11:Value>
<v11:BinaryContent>cid:749983768919</v11:BinaryContent>
</v1:MtomSecuredMessageRequest>
</soapenv:Body>

Please confirm