EBWS doesn't validate SOAP Faults against the faultXsd in JBoss ESB

Issue

• We have the following EBWS:

  <actions inXsd="/request.xsd" outXsd="/response.xsd" faultXsd="/fault.xsd" validate="true">
    <action name="action" class="com.sample.actions.ESBWSListenerAction" />
    ...
  </actions>

• We see that even when an invalid SOAP Fault XML (according to the fault.xsd) is returned, it's just ignored. Doesn't EBWS validate a SOAP Fault against the faultXsd?