Post field as checkbox list select_all_none or std do not work

When displaying posts in a checkbox list, the options select_all_none or std do not appear to work. (I am trying to achieve a checkbox list with all checkboxes pre-ticked)

		array(
			'name'    => __( 'Fabric', 'rwmb' ),
			'id'      => "{$prefix}fabric_attached",
			'type'    => 'post',
			'clone'    => false,			
			'post_type' => 'fabric',
			'field_type' => 'checkbox_list',
			'std'   => 1,
			'select_all_none' => true,
			'query_args' => array(
				'post_status' => 'publish',
				'posts_per_page' => '-1',
				'orderby' => 'name',
				'order' => 'ASC',
			),
		),