MQTT Dstream returned by the new multi topic support API is not a pairRDD

The new multi topic support API added with BAHIR-89, when used in pyspark, does not return a Dstream of <topic,message> tuples.
Example:
In pyspark, when creating a Dstream using the new API ( mqttstream = MQTTUtils.createPairedStream(ssc, brokerUrl, topics) ) the expected contents of mqttstream should be a collections of tuples:

(topic,message) , (topic,message) , (topic,message) , ...

Instead, the current content is a flattened list:

topic, message, topic, message, topic, message, ...

that is hard to use.