Currently, we schedule some tenant oplog applier cleanupwork (like transitioning the async component state to kComplete & notifying donor opTime waiters etc.,) on oplog applier executor. Since Tenant oplog applier uses scoped task-executor which can get shutdown during node shutdown and stepdown, these cleanup work may not get scheduled. This results in tenant oplog applier miss notifying the waiters in TenantOplogApplier::_opTimeNotificationList and another side-effect is that memory leak as this join can't happen.