CodeIgniter4: RedirectResponse does not set cookies

Describe the bug

In a Controller, the following code works:

return $this->response->redirect(route_to('admin'))
->setCookie('foo', 'bar', YEAR)
->setCookie('login_time', $login_time, YEAR);

It does not works:

return redirect()->route('admin')
->setCookie('foo', 'bar', YEAR)
->setCookie('login_time', $login_time, YEAR);

CodeIgniter 4 version

4.0.0-alpha.2

Affected module(s)

HTTP

Expected behavior, and steps to reproduce if appropriate

Expected cookies to be set.

Context

• OS: [Debian]
• Web server [PHP]
• PHP version [7.2]