Gutenberg Templates of post_type wp_template fullsite editor can't update slug( )

[mrkunau]

Description

I'm working on fse with wordpress 5.9-alpha-51813 and Gutenberg Version 11.4.1 but can't update slug(post_name) on post type 'wp_template'

/wp-admin/edit.php?post_type=wp_template
add new a custom template then change slug on input field then Update.
please look video : https://gyazo.com/2e9bb766e8e40c9528199d643fbcadd9
After saved then reload edit post slug is don't update

What do I need to do to update the slug ? please help me. Thanks!

Step-by-step reproduction instructions

Go to : /wp-admin/edit.php?post_type=wp_template
Click Addnew a template
Change slug in input Slug on right metabox
Click Update then reload edit post again ( slug is don't save )

Screenshots, screen recording, code snippet

https://gyazo.com/2e9bb766e8e40c9528199d643fbcadd9

Environment info

Wordpress 5.9-alpha-51813
Gutenberg Version 11.4.1
Theme FSE

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

[carlomanf]

#32861 might be the same issue.

[mrkunau]

#32861 might be the same issue.

Yes - i think so, same issue.
We must add category-{post_type}.html then push to block-template folder in theme , edit it using SiteEditor and that will create new template with category-{post_type} slug, this is so inconvenient.
Thank you @carlomanf !

[annezazu]

Closing this out as a duplicate :)

[mrkunau]

Closing this out as a duplicate :)

Thanks @annezazu ! Looking forward to the fix update soon.