camel-cxf fails to process message if dataFormat=PAYLOAD is set

  <cxf:cxfEndpoint id="my-cxf-bean" 
    address="http://localhost:9000/CamelCXF"
    wsdlURL="./src/main/resources/META-INF/spring/person.wsdl"
    endpointName="s:soap"
    serviceName="s:PersonService"
    xmlns:s="http://servicemix.apache.org/samples/wsdl-first" />

  <camelContext id="camel" xmlns="http://activemq.apache.org/camel/schema/spring">
    <route>
      <from uri="cxf:bean:my-cxf-bean?dataFormat=PAYLOAD"/>
      <to uri="log:DEV-927Logger" />
    </route>
  </camelContext> 

02-Jun-2008 15:17:11 org.apache.camel.component.cxf.interceptors.AbstractMessageInInterceptor createDOMMessage
INFO: AbstractMessageInInterceptor Converting Stax Stream to DOM
02-Jun-2008 15:17:11 org.apache.camel.component.cxf.interceptors.AbstractMessageInInterceptor handleMessage
INFO: AbstractRoutingMessageInInterceptor Infer BindingOperationInfo.
02-Jun-2008 15:17:11 org.apache.cxf.phase.PhaseInterceptorChain doIntercept
INFO: Interceptor has thrown exception, unwinding now
org.apache.cxf.interceptor.Fault: Could not read request. Operation {http://schemas.xmlsoap.org/soap/envelope/}Envelope is unknown
.
        at org.apache.camel.component.cxf.interceptors.AbstractMessageInInterceptor.handleMessage(AbstractMessageInInterceptor.jav
a:103)
        at org.apache.camel.component.cxf.interceptors.DOMInInterceptor.handleMessage(DOMInInterceptor.java:49)
        at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
        at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:77)
        at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.serviceRequest(JettyHTTPDestination.java:280)
        at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:254)
        at org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:62)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
        at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
        at org.mortbay.jetty.Server.handle(Server.java:324)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
        at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:842)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:648)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
        at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
        at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)
02-Jun-2008 15:17:11 org.apache.camel.component.cxf.interceptors.FaultOutInterceptor handleMessage
INFO: FaultOutInterceptor Creating SoapFault