Laravel 5.2 make：auth中间件不能用于$ guard

I looking at Laravel 5.2 and the easy to use "make:auth" and the multi-auth.

I think there is a bug because in the generated middleware "App\Http\Middleware\Authenticate" at handle() method call the $guard parameter is always null. So Laravel use "default"=>"gard"=>"xyz defined in "auth.php", not the one defined by the $guard property in App\Http\Controllers\Auth\AuthController.

Actually i am trying to redirect website user to home controller and website admin to admin controller after login.

Help me come out from this problem.