Where is the event

https://github.com/LimeSurvey/LimeSurvey/blob/2141c44d33ae145d7ab602f1818a15c40fc483b1/application/controllers/admin/useraction.php#L120-L124
https://github.com/LimeSurvey/LimeSurvey/blob/2141c44d33ae145d7ab602f1818a15c40fc483b1/application/controllers/admin/UserManagement.php#L1134-L1140

Added
https://github.com/LimeSurvey/LimeSurvey/commit/953f970448f4ee5fa87ed81a3f6dfcb9738bf5e7

:(

I don't understand these lines:

        $event->set('errorCode', AuthPluginBase::ERROR_NOT_ADDED);
        $event->set('errorMessageTitle', gT("Failed to add user"));
        $event->set('errorMessageBody', gT("Plugin is not active"));

Why are they part of event data? oO

I think it was default set, updated by plugins after ? Unsure ?

Seems only https://github.com/LimeSurvey/LimeSurvey/blob/2141c44d33ae145d7ab602f1818a15c40fc483b1/application/controllers/admin/UserManagement.php#L1134-L1140 happen on 4.X