CXF route proxy cannot return Fault message to client when Dataformat is CXF_MESSAGE

Issue

We are seeing a NPE with CXF_MESSAGE dataFormat to call any service:

Exception in thread "default-workqueue-1" java.lang.NullPointerException
    at org.apache.camel.component.cxf.DefaultCxfBinding.getContentFromCxf(DefaultCxfBinding.java:642)
    at org.apache.camel.component.cxf.DefaultCxfBinding.populateExchangeFromCxfResponse(DefaultCxfBinding.java:151)
    at org.apache.camel.component.cxf.CxfClientCallback.handleException(CxfClientCallback.java:81)
    at org.apache.cxf.interceptor.ClientOutFaultObserver.onMessage(ClientOutFaultObserver.java:59)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream$1.run(HTTPConduit.java:1132)
    at org.apache.cxf.workqueue.AutomaticWorkQueueImpl$3.run(AutomaticWorkQueueImpl.java:428)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at org.apache.cxf.workqueue.AutomaticWorkQueueImpl$AWQThreadFactory$1.run(AutomaticWorkQueueImpl.java:353)
    at java.lang.Thread.run(Thread.java:662)