Switching pages with command palette opens site editor even if user can't access it

[dlh01]

Description

While editing a page using the post editor, I can open the command palette and search for a different page to edit, but when I select the page, it opens in the site editor even if I can't access that.

Step-by-step reproduction instructions

1. Deny users the edit_theme_options capability (see snippet).
2. Open a page in the post editor.
3. Use the command palette to try to edit a different page.
4. Get "Sorry, you are not allowed to access this page."

Screenshots, screen recording, code snippet

Deny the edit_theme_options capability with:

add_filter(
	'map_meta_cap',
	function ( $caps, $cap ) {
		if ( 'edit_theme_options' === $cap ) {
			$caps = [ 'do_not_allow' ];
		}

		return $caps;
	},
	10,
	2
);

Environment info

• WordPress 6.6 beta 1
• Gutenberg plugin deactivated
• Twenty Twenty-Four theme

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