**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)



*/
package org.apache.dubbo.registry.nacos.util;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.registry.client.DefaultServiceInstance;
import org.apache.dubbo.registry.client.ServiceInstance;
import org.apache.dubbo.registry.nacos.NacosNamingServiceWrapper;
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.PropertyKeyConst;
import com.alibaba.nacos.api.exception.NacosException;
import com.alibaba.nacos.api.naming.NamingService;
import com.alibaba.nacos.api.naming.pojo.Instance;
import com.alibaba.nacos.api.naming.utils.NamingUtils;
import java.util.Map;
import java.util.Properties;
import static com.alibaba.nacos.api.PropertyKeyConst.NAMING_LOAD_CACHE_AT_START;
import static com.alibaba.nacos.api.PropertyKeyConst.SERVER_ADDR;
import static com.alibaba.nacos.api.common.Constants.DEFAULT_GROUP;
import static com.alibaba.nacos.client.naming.utils.UtilAndComs.NACOS_NAMING_LOG_NAME;
import static org.apache.dubbo.common.constants.CommonConstants.GROUP_KEY;
import static org.apache.dubbo.common.constants.RemotingConstants.BACKUP_KEY;
import static org.apache.dubbo.common.utils.StringConstantFieldValuePredicate.of;
/**
 * The utilities class for {@link NamingService}
 *
 * @since 2.7.5
 */
public class NacosNamingServiceUtils {