I have an admin page for some settings. The page has several tabs. The problem I’m having is that if there is a space in the tab name (e.g. General Test), then the tab name is output as General_test. I attached a screenshot of the result. I have the same issue on a number of different projects, but they all follow the same setup as below. Am I leaving something out, or is this a bug?

My admin page setup looks like:

add_filter('piklist_admin_pages', function ($pages) {
    $pages []= [
        'page_title' => 'Test Settings',
        'menu_title' => 'Test Settings',
        'capability' => 'manage_options',
        'menu_slug' => 'test_settings',
        'setting' => 'test_settings',
        'menu_icon' => WordPress::assetUrl("assets/images/icon-16x16.png"),
        'page_icon' => WordPress::assetUrl("assets/images/icon-32x32.png"),
        'single_line' => true,
        'default_tab' => 'General',
        'save_text' => 'Save Settings',
    ];

    return $pages;
});

I have a few tabs. The settings file headers look like:

my_plugin/parts/settings/general.php:

/*
Title: General
Tab: General Test
Tab Order: 100
Setting: test_settings
Order: 20
*/

my_plugin/parts/settings/sort.php:

/*
Title: Another
Tab: Another Tab
Tab Order: 300
Setting: test_settings
Order: 20
*/