DN_ID_OLD_EXIST
if (flags & DN_ID_OLD_EXIST) {
dn->dn_id_flags |= DN_ID_OLD_EXIST;
if (before && (flags & (DN_ID_CHKED_BONUS|DN_ID_OLD_EXIST|
if (flags & DN_ID_OLD_EXIST) {
dn->dn_id_flags |= DN_ID_OLD_EXIST;