title: Azure Durable Functions How should I handle TaskFailedExceptionDeserializationException
body: <p>If an exceptions is thrown from an Azure ActivityFunctions and it cannot be serialized to json then a TaskFailedExceptionDeserializationException gets thrown containing the original exception as an InnerException.</p>
  <p>How should this be handled?
  There could be all sorts of exceptions that I am not in control of that cannot be serialized.</p>