Default sort order per table doesn't work

If you have a table style, which has "default sort order" per field configured
the default sort order isn't what you expect. Here is a view which should sort by created descending, but it doesn't.

$view = new view;
$view->name = 'created';
$view->description = '';
$view->tag = 'default';
$view->base_table = 'node';
$view->human_name = 'created';
$view->core = 7;
$view->api_version = '3.0';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */

/* Display: Master */
$handler = $view->new_display('default', 'Master', 'default');
$handler->display->display_options['title'] = 'created';
$handler->display->display_options['access']['type'] = 'perm';
$handler->display->display_options['cache']['type'] = 'none';
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['query']['options']['query_comment'] = FALSE;
$handler->display->display_options['exposed_form']['type'] = 'basic';
$handler->display->display_options['pager']['type'] = 'full';
$handler->display->display_options['pager']['options']['items_per_page'] = '10';
$handler->display->display_options['style_plugin'] = 'table';
$handler->display->display_options['style_options']['columns'] = array(
  'title' => 'title',
  'created' => 'created',
);
$handler->display->display_options['style_options']['default'] = 'created';
$handler->display->display_options['style_options']['info'] = array(
  'title' => array(
    'sortable' => 0,
    'default_sort_order' => 'asc',
    'align' => '',
    'separator' => '',
  ),
  'created' => array(
    'sortable' => 1,
    'default_sort_order' => 'desc',
    'align' => '',
    'separator' => '',
  ),
);
$handler->display->display_options['style_options']['override'] = 1;
$handler->display->display_options['style_options']['sticky'] = 0;
$handler->display->display_options['style_options']['empty_table'] = 0;
/* Field: Content: Title */
$handler->display->display_options['fields']['title']['id'] = 'title';
$handler->display->display_options['fields']['title']['table'] = 'node';
$handler->display->display_options['fields']['title']['field'] = 'title';
$handler->display->display_options['fields']['title']['label'] = '';
$handler->display->display_options['fields']['title']['alter']['alter_text'] = 0;
$handler->display->display_options['fields']['title']['alter']['make_link'] = 0;
$handler->display->display_options['fields']['title']['alter']['absolute'] = 0;
$handler->display->display_options['fields']['title']['alter']['word_boundary'] = 0;
$handler->display->display_options['fields']['title']['alter']['ellipsis'] = 0;
$handler->display->display_options['fields']['title']['alter']['strip_tags'] = 0;
$handler->display->display_options['fields']['title']['alter']['trim'] = 0;
$handler->display->display_options['fields']['title']['alter']['html'] = 0;
$handler->display->display_options['fields']['title']['hide_empty'] = 0;
$handler->display->display_options['fields']['title']['empty_zero'] = 0;
$handler->display->display_options['fields']['title']['link_to_node'] = 1;
/* Field: Content: Post date */
$handler->display->display_options['fields']['created']['id'] = 'created';
$handler->display->display_options['fields']['created']['table'] = 'node';
$handler->display->display_options['fields']['created']['field'] = 'created';
$handler->display->display_options['fields']['created']['alter']['alter_text'] = 0;
$handler->display->display_options['fields']['created']['alter']['make_link'] = 0;
$handler->display->display_options['fields']['created']['alter']['absolute'] = 0;
$handler->display->display_options['fields']['created']['alter']['external'] = 0;
$handler->display->display_options['fields']['created']['alter']['replace_spaces'] = 0;
$handler->display->display_options['fields']['created']['alter']['trim_whitespace'] = 0;
$handler->display->display_options['fields']['created']['alter']['nl2br'] = 0;
$handler->display->display_options['fields']['created']['alter']['word_boundary'] = 1;
$handler->display->display_options['fields']['created']['alter']['ellipsis'] = 1;
$handler->display->display_options['fields']['created']['alter']['strip_tags'] = 0;
$handler->display->display_options['fields']['created']['alter']['trim'] = 0;
$handler->display->display_options['fields']['created']['alter']['html'] = 0;
$handler->display->display_options['fields']['created']['element_label_colon'] = 1;
$handler->display->display_options['fields']['created']['element_default_classes'] = 1;
$handler->display->display_options['fields']['created']['hide_empty'] = 0;
$handler->display->display_options['fields']['created']['empty_zero'] = 0;
$handler->display->display_options['fields']['created']['hide_alter_empty'] = 0;
$handler->display->display_options['fields']['created']['date_format'] = 'long';
/* Filter criterion: Content: Published */
$handler->display->display_options['filters']['status']['id'] = 'status';
$handler->display->display_options['filters']['status']['table'] = 'node';
$handler->display->display_options['filters']['status']['field'] = 'status';
$handler->display->display_options['filters']['status']['value'] = 1;
$handler->display->display_options['filters']['status']['group'] = 0;
$handler->display->display_options['filters']['status']['expose']['operator'] = FALSE;

/* Display: Page */
$handler = $view->new_display('page', 'Page', 'page');
$handler->display->display_options['path'] = 'created';

So the problem is that the logic in function build_sort_post() didn't used 'default_sort_order'.