fix(多选标准弹框): 标准结构树查询

laws-modules/src/main/java/com/jero/modules/laws/common/service/impl/LawsCommonServiceImpl.java

@@ -1441,6 +1441,8 @@ public class LawsCommonServiceImpl implements ILawsCommonService {
                 String ids = lawsNodeRelationList.stream()
                         .map(LawsNodeRelation::getUniqueRelationFlag).collect(Collectors.joining(","));
                 selectionBoxVO.setIds(ids);
+            }else {
+                return new Page<>();
             }
         }
         Page<ManyStandardSelectionBox> page = new Page<>(pageNo, pageSize);