Tree: fixed default-checked-keys display wrong (#13349)

* fix: 12383 Tree in lazy mode set child node 'default-checked-keys', display wrong：All nodes are fulfilled

* 添加测试

* fix code style

* update style

packages/tree/src/model/node.js

@@ -465,6 +465,7 @@ export default class Node {
         this.doCreateChildren(children, defaultProps);
 
         this.updateLeafState();
+        reInitChecked(this);
         if (callback) {
           callback.call(this, children);
         }