DataTable组件，当data为树形数据且异步获取时，设置defaultExpandAll为true无效

[liusk123]

Describe the bug

DataTable组件，当data为树形数据且异步获取时，设置defaultExpandAll为true无效

Steps to reproduce

可复现链接：https://codesandbox.io/p/sandbox/agitated-engelbart-gn7pqn

Link to minimal reproduction

https://codesandbox.io/p/sandbox/agitated-engelbart-gn7pqn

System Info

Win10，Chrome130.0.6723.117

Used Package Manager

npm

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[Zheng-Changfu]

defaultXXX 属性只在组件初始化时生效

1. 你可以转为受控
2. 数据刷新后刷新组件（动态 key）#不推荐