SUMMARY
Restart button does not prompt for authentication even if I set PolicyKit to require admin authentication to restart, and freezes at a black screen after using it.


STEPS TO REPRODUCE
1. Install the following PolicyKit rules:

polkit.addRule(function(action, subject) {
    if (action.id == "org.freedesktop.login1.power-off" ||
        action.id == "org.freedesktop.login1.power-off-ignore-inhibit" ||
        action.id == "org.freedesktop.login1.power-off-multiple-sessions" ||
        action.id == "org.freedesktop.login1.reboot" ||
        action.id == "org.freedesktop.login1.reboot-ignore-inhibit" ||
        action.id == "org.freedesktop.login1.reboot-multiple-sessions" ||
        action.id == "org.freedesktop.login1.set-reboot-parameter" ||
        action.id == "org.freedesktop.login1.set-reboot-to-firmware-setup" ||
        action.id == "org.freedesktop.login1.set-reboot-to-boot-loader-menu" ||
        action.id == "org.freedesktop.login1.set-reboot-to-boot-loader-entry" ||
        action.id == "org.freedesktop.login1.suspend" ||
        action.id == "org.freedesktop.login1.suspend-ignore-inhibit" ||
        action.id == "org.freedesktop.login1.suspend-multiple-sessions" ||
        action.id == "org.freedesktop.login1.hibernate" ||
        action.id == "org.freedesktop.login1.hibernate-ignore-inhibit" ||
        action.id == "org.freedesktop.login1.hibernate-multiple-sessions"
    ) {
        return polkit.Result.AUTH_ADMIN;
    }
});

2. Verify that it works by issuing `pkcheck -u -p $$ -a org.freedesktop.login1.reboot; echo $?` in bash in a terminal in the Plasma desktop environment. It should prompt for an authentication.

3. Restart the system from the start menu

OBSERVED RESULT
It does not prompt for authentication. After choosing the option, the screen goes black and freezes. It only regains responsiveness by signing into another terminal and kill plasma-shutdown process.

EXPECTED RESULT
It prompts for authentication, if succeed it restarts the system.


SOFTWARE/OS VERSIONS
Debian GNU/Linux 12
Linux Version: 6.1.0-13-amd64
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Graphics Platform: X11

ADDITIONAL INFORMATION