编辑用户时 ，小组号回显错误的bug修复

src/modules/admin-user/edit-user/index.vue

@@ -129,7 +129,7 @@ const resetModel = (r: any, result?: any) => {
   } else {
     model.subjectCode = result ? result.subjectCode : ''
     model.mainNumber = result ? result.mainNumber : void 0
-    model.markingGroupNumber = result ? result.mainNumber : void 0
+    model.markingGroupNumber = result ? result.markingGroupNumber : void 0
   }
 }
 const roleChange = (val: any) => {