Just add this function to your qa-theme/<your-theme>/qa-theme.php file:
function head_metas() {
parent::head_metas();
if ($this->template === 'question' && strlen($this->request)) {
$pagetitle = strip_tags(@$this->content['title']);
$this->output('<meta name="title" content="' . $pagetitle . '"/>');
}
}
If the function was already there, then don't add it but rather merge it.