Documentation Doxygen incorrect for form_example_tutorial_8

FYI: there is no form_example_tutorial_8_submit(), however there is another function not listed: form_example_tutorial_8_page_two_back()

/**
 * Example 8: A simple multistep form with a Next and a Back button.
 *
 * Handbook page: http://drupal.org/node/717750.
 *
 * For more extensive multistep forms, see
 * @link form_example_wizard.inc form_example_wizard.inc @endlink
 *
 *
 * Adds logic to our form builder to give it two pages.
 * The @link ajax_example_wizard AJAX Example's Wizard Example @endlink
 * gives an AJAX version of this same idea.
 *
 * @see form_example_tutorial_8_submit() 
 * @see form_example_tutorial_8_next_validate()
 * @see form_example_tutorial_8_page_two()
 * @see form_example_tutorial_8_page_two_submit()
 * @see form_example_tutorial_8_next_submit()
 * @see form_example_tutorial.inc
 * @ingroup form_example
 */
function form_example_tutorial_8($form, &$form_state) {...