Webform template suggestion doesn't work Is there a way to suggest a template in webform 3.x?

I have tried this:

$vars['theme_hook_suggestions'][] = 'webform__form__mywebform';


But it does not work.
Apply the latest patch from here: https://www.drupal.org/node/1891220
In your theme's template.php, in YOURTHEME_preprocess_webform_form(), add:

$path_parts = explode('/', drupal_get_path_alias());

$path = implode('__', str_replace(array('-', ' ', '+', '.'), '_', $path_parts));

$hook = $vars['theme_hook_original'];

$vars['theme_hook_suggestions'][] = "{$hook}__{$path}";