新增594实验无分享支持逻辑

ad-engine-service/src/main/java/com/tzld/piaoquan/ad/engine/service/predict/impl/PredictModelServiceImpl.java

@@ -168,7 +168,7 @@ public class PredictModelServiceImpl implements PredictModelService {
         String midGroupKeyName = RuleRedisKeyConst.KEY_NAME_PREFIX_MID_GROUP + groupClassKey + ":" + requestParam.getMid();
         //没有时为新用户或者无分享用户
         String midGroup = redisHelper.getString(midGroupKeyName);
-        String shareType =null;
+        String shareType =midGroup;
         if (midGroup == null) {
             midGroup = "mean_group";
             shareType="noShare";