TYPO3: Core bug - isRootLevelRestrictionIgnored() missing

/**
 * Checks if user may insert a record from $insertTable on $pid
 * Does not check for workspace, use BE_USER->workspaceAllowLiveRecordsInPID for this in addition to this function call.
 *
 * @param string $insertTable Tablename to check
 * @param integer $pid Integer PID
 * @param integer $action For logging: Action number.
 * @return boolean Returns TRUE if the user may insert a record from table $insertTable on page $pid
 * @todo Define visibility
 */
public function checkRecordInsertAccess($insertTable, $pid, $action = 1) {
    $res = 0;
    $pid = intval($pid);
    if ($pid >= 0) {
        // If information is cached, return it
        if (isset($this->recInsertAccessCache[$insertTable][$pid])) {
            return $this->recInsertAccessCache[$insertTable][$pid];
        } else {
            // If either admin and root-level or if page record exists and 1) if 'pages' you may create new ones 2) if page-content, new content items may be inserted on the $pid page
            if (!$pid && $this->admin || $this->doesRecordExist('pages', $pid, ($insertTable == 'pages' ? $this->pMap['new'] : $this->pMap['editcontent']))) {
                // Check permissions
                if ($this->isTableAllowedForThisPage($pid, $insertTable)) {
                    $res = 1;
                    // Cache the result
                    $this->recInsertAccessCache[$insertTable][$pid] = $res;
                } else {
                    $propArr = $this->getRecordProperties('pages', $pid);
                    $this->log($insertTable, $pid, $action, 0, 1, 'Attempt to insert record on page \'%s\' (%s) where this table, %s, is not allowed', 11, array($propArr['header'], $pid, $insertTable), $propArr['event_pid']);
                }
            } else {
                if ($pid === 0 && \TYPO3\CMS\Backend\Utility\BackendUtility::isRootLevelRestrictionIgnored($insertTable)) {
                    $res = 1;
                    // Cache the result
                    $this->recInsertAccessCache[$insertTable][$pid] = $res;
                } else {
                    $propArr = $this->getRecordProperties('pages', $pid);
                    $this->log($insertTable, $pid, $action, 0, 1, 'Attempt to insert a record on page \'%s\' (%s) from table \'%s\' without permissions. Or non-existing page.', 12, array($propArr['header'], $pid, $insertTable), $propArr['event_pid']);
                }
            }
        }
    }
    return $res;
}