Merge pull request #249112 in DEC/fineui from master to feature/x

* commit 'b96d1a600f77105d0e162dbbfac4694d439504e4':
  无JIRA任务 custom_tree支持hasNext
  无JIRA任务 custom_tree + bi.loader，populate的时候会导致“无更多数据”消失
  无JIRA任务 custom_tree + bi.loader，populate的时候会导致“无更多数据”消失

packages/fineui/src/base/tree/customtree.js

@@ -123,9 +123,8 @@ export class CustomTree extends Widget {
             itemsCreator: (op, callback) => {
                 itemsCreator.apply(this, [
                     op,
-                    items => {
+                    (...args) => {
-                        const args = Array.prototype.slice.call(arguments, 0);
+                        args[0] = this._formatItems(args[0]);
-                        args[0] = this._formatItems(items);
                         callback(...args);
                     }
                 ]);