Calendar Base

I'm extending your extensions tca by loading the tca in my own extensions ext_tables.php.
If done, i can't login in the backend with activated rsa security, because your tca.php created its own t3lib_beUserAuth object, before it's done by the core.

$limitCalendarsToUidWhere = '';
$limitViewOnlyToPidsWhere = '';
$wizzardSuggestDefaults = Array();
if (TYPO3_MODE=="BE") {
    if($_GET['id']>0){
        $pageTSConf = t3lib_befunc::getPagesTSconfig($_GET['id']);
    }else if($_POST['popViewId']>0){
        $pageTSConf = t3lib_befunc::getPagesTSconfig($_POST['popViewId']);
    }
    if(!is_object($GLOBALS['BE_USER']))  {
        define('TYPO3_PROCEED_IF_NO_USER', true);  //patch for crawler
        $GLOBALS['BE_USER'] = t3lib_div::makeInstance('t3lib_beUserAuth');    // New backend user object
        $GLOBALS['BE_USER']->start();            // Object is initialized
        $GLOBALS['BE_USER']->backendCheckLogin();    // Checking if there's a user logged in
        define('TYPO3_PROCEED_IF_NO_USER', false); 
    }
    $be_userCategories = t3lib_div::trimExplode(',',$GLOBALS['BE_USER']->user['tx_cal_category'],1);
    $be_userCalendars = t3lib_div::trimExplode(',',$GLOBALS['BE_USER']->user['tx_cal_calendar'],1);
    $be_userCalendars[] = 0;
    $enableAccessControl = false;

    if($GLOBALS['BE_USER']->user['tx_cal_enable_accesscontroll']){
        $enableAccessControl = true;
    }
    if (is_object($GLOBALS['BE_USER']) && is_array($GLOBALS['BE_USER']->userGroups)) {
        foreach ($GLOBALS['BE_USER']->userGroups as $gid => $group) {
            if($group['tx_cal_enable_accesscontroll']){
                $enableAccessControl = true;
                if ($group['tx_cal_category']) {
                    $be_userCategories[] = $group['tx_cal_category'];
                }
                if ($group['tx_cal_calendar']) {
                    $be_userCalendars[] = $group['tx_cal_calendar'];
                }
            }
        }
    }
    if($enableAccessControl){
        $limitCalendarsToUidWhere = ' AND tx_cal_calendar.uid IN ('.implode(',',$be_userCalendars).')';
    }
    if(is_object($GLOBALS['BE_USER'])){

        $GLOBALS['BE_USER']->fetchGroupData();
        $pids = $GLOBALS['BE_USER']->userTS['options.']['tx_cal_controller.']['limitViewOnlyToPids'];
        if($pids != ''){
            $limitViewOnlyToPidsWhere = '.pid IN ('.$pids.')';
            $wizzardSuggestDefaults['pidList'] = $pids;
        }
    }
} 

Is there a need to do stuff like this? I can't see where you used this vars, so i commented it out in my clone.

So my question:
Is it only a bug and we need this feature or is it possible to waste out this codeblock completlly?