redirect function don't redirect to base_url

[dasua]

Describe the bug
This redirects fails in my controller when upgrading from V4.0.0-alpha2 to V4.0.0-alpha3 (or develop branch):

return redirect(base_url('/login'))->with('tplError', 'Invalid username or password');
return redirect('/login')->with('tplError', 'Invalid username or password');
return redirect(base_url('/dashboard/1'))->with('notifSuccess', 'Login OK');

The value of base_url('/login') is https://dev.dasua.es/login and this works when I write in the browser (is a valid url).

The value of base_url('/dashboard/1') is https://dev.dasua.es/dashboard/1 and this works when I write in the browser (is a valid url).

Throws CodeIgniter\HTTP\Exceptions\HTTPException BASEPATH/HTTP/Exceptions/HTTPException.php at line 106

At CodeIgniter\Router\RouteCollection::reverseRoute method, I get this values:
A partital content of $this->routes is:

reset($vars) array (10)
    * => array (0)
    options => array (0)
    get => array (6)
        / => array (1)
        login => array (1)
            route => array (1)
                login => string (32) "\App\Controllers\Auth::loginForm"
        logout => array (1)
        dashboard/([0-9]+) => array (1)
            route => array (1)
                dashboard/([0-9]+) => string (36) "\App\Controllers\Dashboard::index/$1"

The value of $search method parameter is https://dev.dasua.es/login.

The value of ...$params is an empty array.

CodeIgniter 4 version
v4.0.0-alpha.3 or develop branch

Affected module(s)
CodeIgniter\Router\RouteCollection::reverseRoute()

Expected behavior, and steps to reproduce if appropriate
I think (as describe the function doc):
return redirect(base_url('/login'))->with('tplError', 'Invalid username or password');
return redirect('/login')->with('tplError', 'Invalid username or password');

Must have the same behavior as:
return redirect('login')->with('tplError', 'Invalid username or password'); (this works)

And:
return redirect(base_url('/dashboard/1'))->with('notifSuccess', 'Login OK');
return redirect('/dashboard/1')->with('notifSuccess', 'Login OK');
return redirect('dashboard/1')->with('notifSuccess', 'Login OK');

Must have the same behavior as:

$this->session->setFlashdata('notifSuccess', 'Login OK');
return $this->response->redirect(base_url('/dashboard/1'));

Context

• OS: Debian Stretch
• Web server Apache 2.4
• PHP version 7.2

[lonnieezell]

When using redirect('foo') it treats that as a reverse-routed request, which is why 'login' works but base_url('login') doesn't. That is in the docs, and is there as a security helper.

If you need to specify a full url, use redirect()->to('foo') instead.