Description

In the Site Editor, if you add a string containing % to the URL in the setting of a Custom Link Block in the Navigation Block and then try to delete it, you cannot delete it.

Step-by-step reproduction instructions

1. Block Theme "Twenty Twenty-four" is activated
2. Go Site Editor
3. Move to Navigation
4. Add Custom Link Block
5. Show the config menu
6. Input a string like "20%" including % in URL input area
7. Push Delete key

Screenshots, screen recording, code snippet

Environment info

It reproduces whether Gutenberg is enabled or not.

• WordPress: 6.4 RC1
• Browser: Chrome 117.0.5938.149
• OS: Mac OS 12.5.1

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes