如何使树选择在AntDV中每次总是展开所有节点

import { TreeSelect } from 'ant-design-vue';

<template>
  <TreeSelect
    v-model="selectedNodes"
    :treeData="treeData"
    :defaultExpandAll="true"
    multiple
    treeCheckable
    showCheckedStrategy="SHOW_ALL"
  />
</template>

data() {
  return {
    treeData: [
      // 树节点数据
    ],
    selectedNodes: [],
  };
},