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Subject: [OASIS Issue Tracker] Created: (MQTT-86) Inconsistency in RETAIN description in WD-12, section 2.2.2.3


Inconsistency in RETAIN description in WD-12, section 2.2.2.3
-------------------------------------------------------------

                 Key: MQTT-86
                 URL: http://tools.oasis-open.org/issues/browse/MQTT-86
             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
          Issue Type: Bug
          Components: edits
    Affects Versions: 3.1.1
            Reporter: Andrew Schofield
            Assignee: Richard Coppen
            Priority: Minor
             Fix For: 3.1.1


Section 2.2.2.3 in WD-12 currently contains the following text:
"A server MAY delete a retained message if it receives a message with a zero-length payload and the Retain flag set on the same topic.

A PUBLISH Packet with a retain flag to set to 1 and a payload containing zero bytes will be processed as normal by the server and sent to clients with a subscription matching the topic name. Additionally, any existing retained publication with the same topic name will be removed and any future subscribers for the topic will not receive a retained publication. As normal means that the retained bit is not set in the message received by existing clients."

The second of these paragraphs says that the retained publication *will* be removed, while the first says MAY.

Actually, I just want to ensure that we remove the inconsistency, but I have a preference for the second paragraph.

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