Page title functionality missing

[Guite]

Q	A
Zikula Version	2.0.9
PHP Version	any

Expected behavior

Page titles conform to the pattern configured in the Settings module (pagetitle modvar).

Actual behavior

Page titles consist only of the individual page titles. All other parts are missing.

Additional hints

The following code from the legacy PageUtil needs to be readded so the ParameterBag instance managing page vars can utilise it.

            if ('title' == $varname) {
                $title = System::getVar('pagetitle', '');
                if (!empty($title) && '%pagetitle%' != $title) {
                    $title = str_replace('%pagetitle%', $_pageVars[$varname]['contents'], $title);
                    $title = str_replace('%sitename%', System::getVar('sitename', ''), $title);
                    $moduleInfo = ModUtil::getInfoFromName(ModUtil::getName());
                    $moduleDisplayName = $moduleInfo['displayname'];
                    $title = str_replace('%modulename%', $moduleDisplayName, $title);

                    return $title;
                }
            }

cc @craigh