Description

When a block theme includes the HTML file for a post format archive, the Site Editor and Data Views shows the template without a description and without a human-readable name. Instead it uses the slug, name from the HTML file.

It is as if the Data Views do not recognise that the template is part of the template hierachy.

Step-by-step reproduction instructions

First, you need a block theme, and you need to enable post format support on the active theme.

Example:

function twentytwentyfour_setup(){
	add_theme_support( 'post-formats', array( 'standard', 'aside', 'gallery', 'audio', 'video', 'link', 'image', 'chat', 'status', 'quote' ) );
}

add_action( 'after_setup_theme', 'twentytwentyfour_setup' );

Next, add a post format archive template inside the templates folder.
The content of the file does not matter for this test. I have used the link post format as example:
templates/taxonomy-post_format-post-format-link.html

Optionally, create one or more posts with the link post format assigned.

Go to Appearance > Editor > Templates.
Note that the link archive is available, but uses the whole slug as the template name.

Screenshots, screen recording, code snippet

Environment info

WordPress 6.6.2, with and without Gutenberg trunk.

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