Queues created by MQTT retained messages are not auto deleted

We are sending MQTT retained messages to a MQTT topic and when the topic is not active anymore is cleared by sending an empty message. When the topic is cleared we expect the address and queue that are auto-created in Artemis are deleted as both auto-delete-jms-queues and auto-delete-jms-topics are true and the message-count = 0 and subscriptions = 0.

We also tested using not retained messages then the auto-deletion works as expected.

We expect is has something to do with Artemis creating durable queues for retained messages but we can't find anything in the documentation.