Deleting Duplicate Voucher Login Regardless of Setting

Derelict

I am running into a problem where I want a voucher to be usable on multiple (read however many use it) computers.

When I have the following options set, it seems it should do just that:

Disable concurrent logins: Unchecked
Enable Pass-through MAC automatic additions: Checked
Enable Pass-through MAC automatic addition with username: Checked

With these settings I get log entries such as this:

logportalauth[43009]: DUPLICATE 123m52xh LOGIN - TERMINATING OLD SESSION: 123m52xh, 01:04:3f:8a:e4:23, 172.21.227.107

Without the "Enable Pass-through MAC automatic addition with username" option enabled, it works as expected:

logportalauth[17205]: Voucher login good for 1369 min.: 123m52xh, 04:0c:ce:23:32:34, 172.21.226.25
logportalauth[17205]: Voucher login good for 1369 min.: 123m52xh, 04:cc:ce:56:ab:11, 172.21.226.36
logportalauth[17205]: Voucher login good for 1369 min.: 123m52xh, 23:0c:ce:6e:2b:77, 172.21.227.222

In captiveportal.inc, in function captiveportal_prune_old_automac() I find the following code:

if (isset($tmpvoucherdb[$emac['username']])) {
        $temac = $config['captiveportal'][$cpzone]['passthrumac'][$tmpvoucherdb[$emac['username']]];
        $ruleno = captiveportal_get_ipfw_passthru_ruleno($temac['mac']);
        $pipeno = captiveportal_get_dn_passthru_ruleno($temac['mac']);
        if ($ruleno) {
              captiveportal_free_ipfw_ruleno($ruleno);
              $macrules .= "delete {$ruleno}";
              ++$ruleno;
              $macrules .= "delete {$ruleno}";
        }
        if ($pipeno) {
              captiveportal_free_dn_ruleno($pipeno);
              $macrules .= "pipe delete {$pipeno}\n";
              ++$pipeno;
              $macrules .= "pipe delete {$pipeno}\n";
        }
        $writecfg = true;
        captiveportal_logportalauth($temac['username'], $temac['mac'], $temac['ip'], "DUPLICATE {$temac['username']} LOGIN - TER
MINATING OLD SESSION");
        unset($config['captiveportal'][$cpzone]['passthrumac'][$tmpvoucherdb[$emac['username']]]);
}

Shouldn't that also test to be sure "Disable concurrent logins" is set?