**注解中指定分组和在yaml中配置分组都无效**,导致指定了分组的无法访问

demo下载地址：https://wws.lanzoui.com/iE2BEsrb3nc

**dubbo3.0.1可以正常，升级到3.0.2无法访问，报下面的错。**

![image](https://user-images.githubusercontent.com/1773414/129695093-5b72d7da-d93b-49bb-981c-4234ec2b866c.png)


![image](https://user-images.githubusercontent.com/1773414/129683664-6c524e09-2422-4540-9894-28a4e8ab469e.png)



生产端：
![image](https://user-images.githubusercontent.com/1773414/129694805-4786164b-9c11-4c3e-bb9c-23d87b12d775.png)


消费端
![image](https://user-images.githubusercontent.com/1773414/129694877-052bb465-f5fe-44f4-a3a3-7c4265c1fcc7.png)


nacos控制台：
![image](https://user-images.githubusercontent.com/1773414/129680657-edacb8af-7825-45cf-996a-5cd60fcc4e56.png)



* @return {@link NamingService}
     * @since 2.7.5
     */
    public static NacosNamingServiceWrapper createNamingService(URL connectionURL) {
        Properties nacosProperties = buildNacosProperties(connectionURL);
        NamingService namingService;
        try {
            namingService = NacosFactory.createNamingService(nacosProperties);
        } catch (NacosException e) {
            if (logger.isErrorEnabled()) {
                logger.error(e.getErrMsg(), e);
            }
            throw new IllegalStateException(e);
        }
        return new NacosNamingServiceWrapper(namingService);
    }
    private static Properties buildNacosProperties(URL url) {
        Properties properties = new Properties();
        setServerAddr(url, properties);
        setProperties(url, properties);
        return properties;
    }
    private static void setServerAddr(URL url, Properties properties) {
        StringBuilder serverAddrBuilder =
                new StringBuilder(url.getHost()) 
                        .append(':')
                        .append(url.getPort()); 
        
        String backup = url.getParameter(BACKUP_KEY);
        if (backup != null) {