faultactor element disappears when detail element is present in SOAP Fault

When the XFire client receives a SOAP Fault, it is parsed into an XFireFault (exception). However, if this SOAP Fault contains a "detail" element, the faultactor element is no longer parsed.

I have debugged the parsers and found the exact cause and location of the error:
When de details element is parsed, there is one call too many on r.next (r = XMLStreamReader) in StaxBuilder.java on line 446. This causes the pointer to be on the start element of the "faultactor" tag. After returning to the file Soap11FaultSerializer.java on line 68 and returning back to the loop, on line 40, there is another call to r.next (r = same XMLStreamReader instance as above).

The result is that the element following the "details" element in the SOAP Fault (in my case that is "faultactor") is never parsed.