fix

src/main/java/com/zzsn/knowbase/service/impl/KnowledgeServiceImpl.java

@@ -321,9 +321,7 @@ class KnowledgeServiceImpl implements IKnowledgeService {
             outer.should(boolQueryColumn);
 
         }
-        if (!catList.isEmpty()) {
-            boolQuery.must(QueryBuilders.termsQuery("knowledgeProjectId", catList));
-        }
+        boolQuery.must(QueryBuilders.termsQuery("knowledgeProjectId", catList));
         if (StringUtils.isNotEmpty(knowledgeParam.getTypeIds())) {
             boolQuery.must(QueryBuilders.termsQuery("typeId", Arrays.asList(knowledgeParam.getTypeIds().split(","))));
         }