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I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

Steps to reproduce

点击重现链接的“update data”按钮，调用setState更新数据，当一个节点已更新后，展开那个节点，再点击“update data”按钮，该节点的展开按钮消失了，该节点无法展开了。

What is expected?

如果一个节点的数据没有children，isLeaf，那么该节点的展开按钮应该是一直在的

What is actually happening?

展开按钮消失。

Environment

Hello @zhengshuai1001 , we use GitHub issues to trace bugs or discuss plans of Ant Design. So, please don't ask usage questions here. You can try to ask questions on Stack Overflow or Segment Fault , then apply tag antd and react to your question.

你好 @zhengshuai1001 ，Ant Design Issue 板块是用于 bug 反馈与需求讨论的地方。请 勿询问如何使用的问题 ，你可以试着在 Stack Overflow 或者 Segment Fault 中提问（记得添加 antd 和 react 标签哦~）。