[精准投放][修改][根据标签查询不到人时，检查]

mallinkService/src/main/java/com/iformall/service/impl/WxCUserTagsServiceImpl.java

@@ -106,6 +106,9 @@ public class WxCUserTagsServiceImpl implements WxCUserTagsService {
 			String str = JSON.toJSONString(tagId);
 			hs.addAll(wxCUserTagsMapper.findCUserByTags(str, tenantId));
 		}
+		if(hs.isEmpty()){
+			return new ArrayList<WxCUser>();
+		}
 		List<Long> userIds = new ArrayList<>();
 		userIds.addAll(hs);
 		WxCUser wxCUser = new WxCUser();