* Filter the file path to the shortcode
* @since 1.0.0
* @param (string)     $shortcode_file     filename of the shortcode file
* @return (string)     $shortcode_file     filename of the shortcode file

The shortcode [ticket-create] is using two different template files for the shortcode output. With this filter you can alter the path to the template file, which renders the page once the form has been submitted successfully. Is used by sts_ticket_create()