[Bug] NamespaceV2 is not working

### Before Creating the Bug Report

- [x] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions).

- [x] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate.

- [x] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

### Runtime platform environment

Debian 12

Client: Docker Engine - Community
Version: 28.0.4

### RocketMQ version

5.3.1 and 5.3.2

### JDK Version

1.8

### Describe the Bug

namespace can consume messages from other namespace.

### Steps to Reproduce

deploy rocketmq with docker compose：

```yml
services:
namesrv:
image: apache/rocketmq:5.3.1
container_name: rmqnamesrv
restart: on-failure
volumes:
- ./logs/namesrv:/home/rocketmq/logs
ports:
- 9876:9876
networks:
- rocketmq
command: sh mqnamesrv

broker:
image: apache/rocketmq:5.3.1
container_name: rmqbroker
restart: on-failure
ports:
- 10909:10909
- 10911:10911
- 10912:10912
environment:
- NAMESRV_ADDR=namesrv:9876
- JAVA_OPT_EXT=-server -Xms512m -Xmx512m -Duser.home=/home/rocketmq
volumes:
- ./broker_master/store:/home/rocketmq/store
- ./broker_master/broker.conf:/home/rocketmq/rocketmq-5.3.1/conf/broker.conf
- ./logs/broker:/home/rocketmq/logs
depends_on:
- namesrv
networks:
- rocketmq
command: sh mqbroker -c ../conf/broker.conf

console:
image: harbor.hyuxl.cn/apache/rocketmq-dashboard
container_name: rmqconsole
restart: on-failure
ports:
- 9080:8080
environment:
- JAVA_OPTS=-Dserver.port=8080 -Drocketmq.config.namesrvAddr=namesrv:9876
depends_on:
- namesrv
networks:
- rocketmq
networks:
rocketmq:
name: rocketmq
driver: bridge
```

broker.conf
```conf
brokerClusterName=DefaultCluster
brokerName=Broker-A
brokerId=0
deleteWhen=03
fileReservedTime=48
brokerRole=ASYNC_MASTER
flushDiskType=ASYNC_FLUSH
listenPort=10911
brokerIP1=192.168.30.12
namesrvAddr=192.168.30.12:9876
autoCreateTopicEnable=true
```

Use the code in the example folder:
ProducerWithNamespace.java
```java
public class ProducerWithNamespace {

public static final String NAMESPACE = "InstanceTest1";
public static final String PRODUCER_GROUP = "pidTest";
public static final String DEFAULT_NAMESRVADDR = "192.168.30.12:9876";
public static final int MESSAGE_COUNT = 100;
public static final String TOPIC = "NAMESPACE_TOPIC";
public static final String TAG = "tagTest";

public static void main(String[] args) throws Exception {

DefaultMQProducer producer = new DefaultMQProducer(PRODUCER_GROUP);
producer.setNamespaceV2(NAMESPACE);

producer.setNamesrvAddr(DEFAULT_NAMESRVADDR);
producer.start();
for (int i = 0; i < MESSAGE_COUNT; i++) {
Message message = new Message(TOPIC, TAG, ("Hello world " + NAMESPACE).getBytes(StandardCharsets.UTF_8));
try {
SendResult result = producer.send(message);
System.out.printf("Topic:%s send success, misId is:%s%n", message.getTopic(), result.getMsgId());
} catch (Exception e) {
e.printStackTrace();
}
}
producer.shutdown();
}
}
```
PushConsumerWithNamespace.java
```java
public class PushConsumerWithNamespace {
public static final String NAMESPACE = "InstanceTest";
public static final String CONSUMER_GROUP = "cidTest";
public static final String DEFAULT_NAMESRVADDR = "192.168.30.12:9876";
public static final String TOPIC = "NAMESPACE_TOPIC";

public static void main(String[] args) throws Exception {
DefaultMQPushConsumer defaultMQPushConsumer = new DefaultMQPushConsumer(CONSUMER_GROUP);
defaultMQPushConsumer.setNamespaceV2(NAMESPACE);
defaultMQPushConsumer.setNamesrvAddr(DEFAULT_NAMESRVADDR);
defaultMQPushConsumer.subscribe(TOPIC, "*");
defaultMQPushConsumer.registerMessageListener((MessageListenerConcurrently) (msgs, context) -> {
msgs.forEach(msg -> System.out.printf("Msg topic is:%s, MsgId is:%s, Namespace is: %s, Message is: %s, reconsumeTimes is:%s%n", msg.getTopic(), msg.getMsgId(), NAMESPACE, new String(msg.getBody(), StandardCharsets.UTF_8), msg.getReconsumeTimes()));
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
});

defaultMQPushConsumer.start();
}
}
```

### What Did You Expect to See?

namespace InstanceTest can not consume message from namespace InstanceTest1

### What Did You See Instead?



### Additional Context

_No response_