WithNoLocal not working as expected when WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V500)

[LadderLogic]

I've setup a managed client (on 4.latest) with:

new MqttClientOptionsBuilder()
             .WithClientId(innerPubSub.ClientId)
             .WithTcpServer(brokerHost, brokerPort)
             .WithWillTopic($"{ClientStatusTopicPrefix}{ClientId}")
             .WithWillQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce)
             .WithWillPayload("offline") // Default payload for will message when disconnected
             .WithCleanSession()
             .WithKeepAlivePeriod(TimeSpan.MaxValue) // Use max keep alive to avoid unnecessary disconnects
             .Build();

and subscribe using:

new MqttTopicFilterBuilder()
                .WithTopic(topic)
                .WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce)
                .WithNoLocal(true) // Use MQTTnet's built-in NoLocal support
                .Build();

This works as expected, even after restarting the client. However, if I add V5 protocol version in the client options build like the below, I start getting local messages on restart, which is the opposite behavior than I would expect:

new MqttClientOptionsBuilder()
             .WithClientId(innerPubSub.ClientId)
             .WithTcpServer(brokerHost, brokerPort)
             .WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V500)
             .WithWillTopic($"{ClientStatusTopicPrefix}{ClientId}")
             .WithWillQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce)
             .WithWillPayload("offline") // Default payload for will message when disconnected
             .WithCleanSession()
             .WithKeepAlivePeriod(TimeSpan.MaxValue) // Use max keep alive to avoid unnecessary disconnects
             .Build();