core-bundle/src/Security/User/ContaoUserProvider.php
public function refreshUser(UserInterface $user)
    {
        if (!is_a($user, $this->userClass)) {
            throw new UnsupportedUserException(sprintf('Unsupported class "%s".', \get_class($user)));
        }

        $user = $this->loadUserByUsername($user->getUsername());

        $this->validateSessionLifetime($user);
        $this->triggerPostAuthenticateHook($user);

        return $user;
    }
public function refreshUser(UserInterface $user)
    {
        if (!is_a($user, $this->userClass)) {
            throw new UnsupportedUserException(sprintf('Unsupported class "%s".', \get_class($user)));
        }

        $user = $this->loadUserByUsername($user->getUsername());

        $this->validateSessionLifetime($user);
        $this->triggerPostAuthenticateHook($user);

        return $user;
    }
{@inheritdoc}