Neos\Neos\Controller\LoginController::initializeIndexAction PHP Метод

    public function initializeIndexAction()
    {
        if (is_array($this->request->getInternalArgument('__authentication'))) {
            $authentication = $this->request->getInternalArgument('__authentication');
            if (isset($authentication['TYPO3']['Flow']['Security']['Authentication']['Token']['UsernamePassword']['username'])) {
                $this->request->setArgument('username', $authentication['TYPO3']['Flow']['Security']['Authentication']['Token']['UsernamePassword']['username']);
            }
        }
    }