Need of edit_post capability in Custom Post Types with nested menu

Hello everyone,

I think I found a WP-Bug, and i don’t know, where to post this, so I put it here.

Whe you create custom post types and nest one in the other you can’t create a new entry without the user capability “edit_post”.

Here is a simple example to reproduce the error:

function codex_custom_init() {
    $args = array(
        'public' => true,
        'label'  => 'Newsletter',
        'capability_type'	=> 'newsletter',
        'map_meta_cap'		=> true,
    );
    register_post_type( 'newsletter', $args );

    $args = array(
        'public' => true,
        'label'  => 'Template',
        'capability_type'	=> 'template',
        'map_meta_cap'		=> true,
        'show_in_menu'		=> 'edit.php?post_type=newsletter',
    );
    register_post_type( 'template', $args );
}
add_action( 'init', 'codex_custom_init' );

You can’t create posts, even if you set the capabilities correct. When you document out the ‘show in menu’ option, everything works fine.

Regards,
Jochen