TKT_FLG_MAY_POSTDATE
if (cred->ticket_flags & TKT_FLG_MAY_POSTDATE)
setflag(enc_tkt_reply.flags, TKT_FLG_MAY_POSTDATE);
setflag(enc_tkt_reply.flags, TKT_FLG_MAY_POSTDATE);
!isflagset(ticket->enc_part2->flags, TKT_FLG_MAY_POSTDATE)) {