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mqttnet.rx's Issues

How to share same client instance?

Hi, Thanks for creating a great libraries.
I have question regarding MQTTnet.Rx.Client package to share same client connection for all message subscription and publishing.
I see multiple client connections connected to the server. How can be use to share same client instance?

 internal class Program {
	static async Task Main(string[] args) {
		var serverPort = 2883;
		var mqttServerOptions = new MqttServerOptionsBuilder()
								.WithDefaultEndpointPort(serverPort)
								.WithDefaultEndpoint().Build();

		var mqttFactory = new MqttFactory();
		var mqttServer = mqttFactory.CreateMqttServer(mqttServerOptions);
		mqttServer.ClientConnectedAsync += (args) => {
			Console.WriteLine($"SERVER: ClientConnectedAsync => clientId:{args.ClientId}");
			return Task.CompletedTask;
		};
		mqttServer.ClientDisconnectedAsync += (args) => {
			Console.WriteLine($"SERVER: ClientDisconnectedAsync => clientId:{args.ClientId}");
			return Task.CompletedTask;
		};
		Console.WriteLine("Starting MQTT server...");
		await mqttServer.StartAsync();
		Console.WriteLine("MQTT server is started.");
		Console.WriteLine("------------------------------------\n");


		var obsClient = Create.ManagedMqttClient()
							  .WithManagedClientOptions(options => {
								  options.WithClientOptions(c => {
									  c.WithTcpServer("localhost", serverPort);
									  //c.WithClientId("Client01");
								  });
								  options.WithAutoReconnectDelay(TimeSpan.FromSeconds(2));
							  });

		obsClient.Subscribe(i => {
			i.Connected().Subscribe((args) => {
				Console.WriteLine($"{DateTime.Now.Dump()}\t CLIENT: Connected with server.");
			});
			i.Disconnected().Subscribe((args) => {
				Console.WriteLine($"{DateTime.Now.Dump()}\t CLIENT: Disconnected with server.");
			});
		});

		var s1 = obsClient.SubscribeToTopic("FromMilliseconds")
				 .Subscribe(r => {
					 Console.WriteLine($"\tCLIENT S1: {r.ReasonCode} [{r.ApplicationMessage.Topic}] value : {r.ApplicationMessage.ConvertPayloadToString()}");
				 });

		var s2 = obsClient.SubscribeToTopic("FromMilliseconds")
				 .Subscribe(r => {
					 Console.WriteLine($"\tCLIENT S2: {r.ReasonCode} [{r.ApplicationMessage.Topic}] value : {r.ApplicationMessage.ConvertPayloadToString()}");
				 });

		Subject<(string topic, string payload)> _message = new();

		Observable.Interval(TimeSpan.FromMilliseconds(1000)).Subscribe(i => _message.OnNext(("FromMilliseconds", "{" + $"payload: {i}" + "}")));

		obsClient.PublishMessage(_message).Subscribe(r => {
			//Console.WriteLine($"Publish result [{r.Exception == null}], Id:{r.ApplicationMessage.Id}, Topic:{r.ApplicationMessage.ApplicationMessage.Topic}");
		});



		await Task.Delay(3000);
		s2.Dispose();
		Console.WriteLine("Dispose S2 ---------------");

		Console.Read();
	}
}

Console Output1

Starting MQTT server...
MQTT server is started.
------------------------------------

SERVER: ClientConnectedAsync => clientId:96e2cb5dce544559b823f12b17285864
SERVER: ClientConnectedAsync => clientId:936ca9900f3c4f599d4e7a63b32890ab
SERVER: ClientConnectedAsync => clientId:c3a72d8bfba64a5cbb523bb34fcc3094
SERVER: ClientConnectedAsync => clientId:77782d2f2f124550bee68adff8d80940
03:29:20.4536    CLIENT: Connected with server.
        CLIENT S2: Success [FromMilliseconds] value : {payload: 0}
        CLIENT S1: Success [FromMilliseconds] value : {payload: 0}
        CLIENT S1: Success [FromMilliseconds] value : {payload: 1}
        CLIENT S2: Success [FromMilliseconds] value : {payload: 1}
        CLIENT S1: Success [FromMilliseconds] value : {payload: 2}
        CLIENT S2: Success [FromMilliseconds] value : {payload: 2}
Dispose S2 ---------------
SERVER: ClientDisconnectedAsync => clientId:c3a72d8bfba64a5cbb523bb34fcc3094
        CLIENT S1: Success [FromMilliseconds] value : {payload: 3}
        CLIENT S1: Success [FromMilliseconds] value : {payload: 4}
        CLIENT S1: Success [FromMilliseconds] value : {payload: 5}

If I try to use constant clientId in MqttClientOptionsBuilder c.WithClientId("Client01");

Console Output2

Starting MQTT server...
MQTT server is started.
------------------------------------

SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
03:30:48.6046    CLIENT: Connected with server.
03:30:48.6194    CLIENT: Disconnected with server.
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
03:30:50.6232    CLIENT: Connected with server.
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
03:30:50.6594    CLIENT: Disconnected with server.
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
Dispose S2 ---------------
SERVER: ClientDisconnectedAsync => clientId:Client01
SERVER: ClientConnectedAsync => clientId:Client01
03:30:51.6368    CLIENT: Connected with server.

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