core-bundle/src/DependencyInjection/Security/ContaoLoginFactory.php
protected function createListener($container, $id, $config, $userProvider): string
    {
        $listenerId = parent::createListener($container, $id, $config, $userProvider);

        /* @var ContainerBuilder $container */
        $container
            ->getDefinition($listenerId)
            ->replaceArgument(
                7,
                array_merge(
                    $container->getDefinition($listenerId)->getArgument(7),
                    ['username_parameter' => 'username', 'password_parameter' => 'password']
                )
            )
        ;

        return $listenerId;
    }
protected function createListener($container, $id, $config, $userProvider): string
    {
        $listenerId = parent::createListener($container, $id, $config, $userProvider);

        /* @var ContainerBuilder $container */
        $container
            ->getDefinition($listenerId)
            ->replaceArgument(
                7,
                array_merge(
                    $container->getDefinition($listenerId)->getArgument(7),
                    ['username_parameter' => 'username', 'password_parameter' => 'password']
                )
            )
        ;

        return $listenerId;
    }
{@inheritdoc}