Multisite : [uids] belong to site

[geoffroycochard]

Add a check to results [uids] if really belong to the site

            // Filter if results uids belong to the site
            $uids = array_filter($uids, function ($uid) use($rootPageId) {
                $rootline = GeneralUtility::makeInstance(RootlineUtility::class, $uid);
                return $rootline->get()[0]['uid'] === $rootPageId;
            });