Use correct appid for lostpassword email preference

core/lostpassword/index.php

@@ -14,7 +14,7 @@ if (isset($_POST['user'])) {
 	if (OC_User::userExists($_POST['user'])) {
 		$token = sha1($_POST['user']+uniqId());
 		OC_Preferences::setValue($_POST['user'], 'owncloud', 'lostpassword', $token);
-		$email = OC_Preferences::getValue($_POST['user'], 'lostpassword', 'email', '');
+		$email = OC_Preferences::getValue($_POST['user'], 'settings', 'email', '');
 		if (!empty($email)) {
 			$link = OC_Helper::linkTo('core/lostpassword', 'resetpassword.php', null, true).'?user='.$_POST['user'].'&token='.$token;
 			$tmpl = new OC_Template('core/lostpassword', 'email');