MOD: 召回去掉正态分布提权

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/rank/strategy/RankStrategy4Density.java

@@ -36,7 +36,7 @@ public class RankStrategy4Density extends RankService {
     public RankResult mergeAndSort(RankParam param, List<Video> rovVideos, List<Video> flowVideos) {
 
          //1 兜底策略，rov池子不足时，用冷启池填补。直接返回。
-        if (CollectionUtils.isEmpty(rovVideos)) {
+        if (CollectionUtils.isEmpty(rovVideos) || filterRules == null || filterRules.isEmpty()) {
             if (param.getSize() < flowVideos.size()) {
                 return new RankResult(flowVideos.subList(0, param.getSize()));
             } else {