Dubbo发起调用前先设一个context，这个是dubbo的bug吗？

Dubbo发起调用前先设一个context，在consumer filter里面覆盖掉这个context，但是provider拿到的还是前一个，这个是dubbo的bug吗？还是设计如此？
哪位老师知道
consumer-side:RpcContext.getContext().setAttachment("demo", "demo001");RpcCall.call();consumer-filter:RpcContext.getContext().setAttachment("demo", "demo002");provider-side://获取到的值是demo001，而不是demo002
RpcContext.getContext().getAttachment("demo");
consumer服务

consumer.java
ApplicationConfig applicationConfig = new ApplicationConfig();
applicationConfig.setName("demo-consumer");
applicationConfig.setQosEnable(false);
applicationConfig.setRegisterMode("instance");

    applicationConfig.setMetadataType("remote");

    RegistryConfig registryConfig = new RegistryConfig();
    registryConfig.setAddress("nacos://xxxxxxxxxxx");

    ReferenceConfig<DemoService> demoServiceReference = new ReferenceConfig<>();
    demoServiceReference.setInterface(DemoService.class);
    demoServiceReference.setCheck(false);

    DubboBootstrap bootstrap = DubboBootstrap.newInstance();
    bootstrap.application(applicationConfig)
            .registry(registryConfig)
            .reference(demoServiceReference)
            .start();

    RpcContext.getContext().setAttachment("demo", "demo001");
    DemoService demoService = demoServiceReference.get();
    System.out.println(demoService.sayHi(""));

@Activate(group = CommonConstants.CONSUMER)
public class DemoFilter implements Filter {
@Override
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
RpcContext.getClientAttachment().setAttachment("demo", "demo002");
RpcContext.getServerAttachment().setAttachment("demo", "demo002");
RpcContext.getServerContext().setAttachment("demo", "demo002");
RpcContext.getServiceContext().setAttachment("demo", "demo002");
RpcContext.getContext().setAttachment("demo", "demo002");
// invocation.setAttachment("demo", "demo002");
return invoker.invoke(invocation);
}
}

provider服务
provider.java
ProtocolConfig protocol = new ProtocolConfig();
protocol.setName("dubbo");

    ServiceConfig<DemoService> demoServiceConfig = new ServiceConfig<>();
    demoServiceConfig.setInterface(DemoService.class);
    demoServiceConfig.setRef(new DemoServiceImpl());

    DubboBootstrap dubboBootstrap = DubboBootstrap.newInstance();

    ApplicationConfig applicationConfig = new ApplicationConfig();
    applicationConfig.setName("demo-provider");
    applicationConfig.setQosEnable(false);
    applicationConfig.setRegisterMode("instance");

    RegistryConfig registryConfig = new RegistryConfig();
    registryConfig.setAddress("nacos://xxxxxxxxxxxxxxxx");

    dubboBootstrap
            .application(applicationConfig)
            .registry(registryConfig)
            .protocol(protocol)
            .service(demoServiceConfig)
            .start();

    System.out.println("start status: " + dubboBootstrap.isStarted());

public class DemoServiceImpl implements DemoService {
@Override
public Object sayHi(String name) {
String d = RpcContext.getContext().getAttachment("demo");
System.out.println(d);
}
}