- [ ] I have searched the [issues](https://github.com/ant-design/ant-design/issues) of this repository and believe that this is not a duplicate. ### Reproduction link [](https://codesandbox.io/s/xu-ni-gun-dong-antd-4-18-8-forked-8p4ljh?file=/index.js) ### Steps to reproduce 展开/折叠时刷新titleRender多次。 ### What is expected? 减少不是必要的titleRender刷新 ### What is actually happening? 减少不是必要的titleRender刷新 | Environment | Info | |---|---| | antd | 4.18.8 | | React | react | | System | windows | | Browser | Chrome | <!-- generated by ant-design-issue-helper. DO NOT REMOVE -->
Reproduction link
Steps to reproduce
展开/折叠时刷新titleRender多次。
What is expected?
减少不是必要的titleRender刷新
What is actually happening?
减少不是必要的titleRender刷新