- [x] 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/antd-requiredmark-dom-bug-qro7t2?file=/index.js) ### Steps to reproduce add requiredMark="optional" on form item ### What is expected? do not show React does not recognize the `requiredMark` prop on a DOM element error ### What is actually happening? is showing react error React does not recognize the `requiredMark` prop on a DOM element | Environment | Info | |---|---| | antd | 4.18.9 | | React | 16.14.0 | | System | Windows 10 | | Browser | Version 99.0.4844.51 (Official Build) (64-bit) | --- company testing <!-- generated by ant-design-issue-helper. DO NOT REMOVE -->