订单查询添加机构名称搜索字段

src/views/Letter/Orderlist.vue

@@ -1115,6 +1115,9 @@ export default {
       if (val.length !== 0) {
         this.pageRequest.deptId = val.at(-1);
       }
+      else{
+        this.pageRequest.deptId = ''
+      }
     },
     getDimensions() {
       this.width = document.documentElement.clientWidth - 350 + 'px';