Where a Server that indicates that it does not support retained messages, none of the values of Retain As Published and Retain Handling will cause it send a retained message.
Add a non normative comment:
Where a Server that indicates that it does not support retained messages, none of the values of Retain As Published and Retain Handling will cause it send a retained message.
Line 2387 – 2399:
need clarification about the behavior if the Server doesn’t support RETAIN
This issue was originally reported in MQTT-417, which doesn't seem to be applied in WD14.