Symfony version(s) affected: 4.2 - 4.4

Description
Similar to #26775, In https://github.com/symfony/symfony/blob/4.4/src/Symfony/Component/Security/Core/Authentication/Provider/RememberMeAuthenticationProvider.php#L50-L52.
TokenInterface::getUser() returns string|object, UserCheckerInterface::checkPreAuth() allows a UserInterface instance only.

I get Argument 1 passed to checkPreAuth() must implement interface Symfony\Component\Security\Core\User\UserInterface, null given, and can't reproduce it, but the code looks wrong.