[Bug] Input crash on a special situation

[gaokun]

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

Version

4.2.6

Environment

Reproduction link

https://stackblitz.com/edit/sb1-jftfjxkq?file=index.html

Steps to reproduce

see steps in reproduction link

What is expected?

no 'Uncaught TypeError: Cannot read properties of null (reading 'input')'

What is actually happening?

show 'Uncaught TypeError: Cannot read properties of null (reading 'input')'

[github-actions]

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