Merge pull request #205013 in DEC/fineui from release/11.0 to bugfix/11.0

* commit 'f6ef16c5fac1e854caccf9f708610c9029ea788c':
  BI-115904 fix: 【来源内测BUG】展开下拉树子节点，会出现重复数据 同步

src/case/ztree/1.asynctree.js

@@ -1,6 +1,6 @@
 /**
  * guy
- * 同步树
+ * 异步树
  * @class BI.AsyncTree
  * @extends BI.TreeView
  */
@@ -194,7 +194,8 @@ BI.AsyncTree = BI.inherit(BI.TreeView, {
 
         // 展开节点会将halfCheck置为false以开启自动计算半选, 所以第一次展开节点的时候需要在置为false之前获取配置
         var checkState = treeNode.getCheckStatus();
-        if (!treeNode.children) {
+        if (!treeNode.children && !treeNode.requested) {
+            treeNode.requested = true;
             setTimeout(function () {
                 getNodes({
                     times: 1,