OEL-387: Notificationteest succeded: user who is purged but not notified...
requested to merge issue/purge_users-3227550:avoid-spamming-users-3227550-notification-test into 8.x-3.x
OEL-387: Notificationteest succeded: user who is purged but not notified added, before-notification date added as constraint in notification query.