If a message is received with the replyTo field set and the onMessage
function passed to startConsumer returns a promise, the value returned
by the promise won't be included in the reply message. Instead a JSON
version of the entire promise will be included instead. This fixes that.
If a message is received with the replyTo field set and the onMessage function passed to startConsumer returns a promise, the value returned by the promise won't be included in the reply message. Instead a JSON version of the entire promise will be included instead. This fixes that.