获取集团分类根节点前端传null传入后端直接改为空字符串bug修复

 Source/UBCS/ubcs-service/ubcs-code/src/main/java/com/vci/ubcs/code/service/impl/CodeDuckingSyncServiceImpl.java

@@ -283,7 +283,7 @@
            lastchangedon=endDate;
        }
        searchItemParam.setLastchangedon(lastchangedon);
        searchItemParam.setStatus("1");//
        searchItemParam.setStatus("2");//
        Map<String,String>searchDataMap=  VciBaseUtil.objectToMapString(searchItemParam);
        SearchItemVO searchItemVO= mdmSearchItemCodeProvider.getppModelByElem(searchDataMap);
        /*SearchItemVO searchItemVO=new SearchItemVO();