post_type_supports($post_type, ‘custom-fields’)

Hi
using 5.0-beta2-43859
there seems to be an issue where ‘custom-fields’ are always shown in the post editor for a custom post type, even if they were not enabled when registering the post type (and it also throws PHP Notices)

i might be wrong of course, but wrapping the codeblock in brackets appears to fix this i.e currently it’s

if ( post_type_supports($post_type, 'custom-fields') )
	$screen = get_current_screen();
	if ( ! $screen || ! $screen->is_block_editor() || (bool) get_user_meta( get_current_user_id(), 'enable_custom_fields', true ) ) {
		add_meta_box('postcustom', __('Custom Fields'), 'post_custom_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => false, '__block_editor_compatible_meta_box' => true ) );
	}

simply doing this seems to fix the problem

if ( post_type_supports($post_type, 'custom-fields') ){
	$screen = get_current_screen();
	if ( ! $screen || ! $screen->is_block_editor() || (bool) get_user_meta( get_current_user_id(), 'enable_custom_fields', true ) ) {
		add_meta_box('postcustom', __('Custom Fields'), 'post_custom_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => false, '__block_editor_compatible_meta_box' => true ) );
	}
}

file in question: /wp-admin/includes/meta-boxes.php (approx. line 1363)

(of course, maybe i am missing something entirely and am looking in the wrong place, alwasy a possibility of course)

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