Messages sent multiple times

Hello,

I have this code:

var mychannel = socket.subscribe("updates-" + payload[1] + "-" + payload[4]);
mychannel.on('subscribe', function(){
    mychannel.publish(dbmsg.payload, function(err, ackData){
        mychannel.unsubscribe();
        console.log("adjust: sent " + dbmsg.payload);
    });
});

The payload is a string like "UPDATE;;995502044;;1.65;;2.65;;276" that I split.

Whenever that code is triggered it sends some of the previous messages, for example if I try to send this payload "UPDATE;;995502044;;0.00;;15.00;;276" it logs this:

adjust: sent UPDATE;;995502044;;1.65;;2.65;;276
adjust: sent UPDATE;;995502044;;2.65;;3.65;;276
adjust: sent UPDATE;;995502044;;3.65;;4.65;;276
adjust: sent UPDATE;;995502044;;4.65;;0.00;;276
adjust: sent UPDATE;;995502044;;0.00;;15.00;;276 <---- the payload I just sent. all above are older.

It's basically re-sending the whole message history for some reason.

Am I doing something wrong?

Begin with the subscribe, subscribe callback, publish, and unsubscribe flow shown in the issue, reproducing it with the supplied payload sequence. Compare the repeated logging with SocketCluster's channel lifecycle and publish behavior; done means determining whether this is framework behavior or application misuse and documenting a minimal reproducible result.