修复 calculateUserSelect 的bug。

src/workflow/WorkflowUserDefine.vue

@@ -134,7 +134,7 @@ export default {
               _self.userSelectDefineList.length,
             );
           } else if (successData.errorCode == 0 && successData.datas != null){
-            successData.forEach(function (item) {
+            successData.datas.forEach(function (item) {
               item.editable = true;
             });
             _self.userSelectDefineList = successData.datas;