[AGENT++] The trap is received but callback isn't executed? CONTINUES

[Dario maljur]

What I also noticed is the only trap that initiates callback is ColdStart,
and only coldstart, I tried to use snmpTrapsOid but it's the same.

Log sees that trap is received but I doesn't do anything else. Does this
means that I must use only predefined trap oids, like coldstart and
snmptrapsoid? Or I can register any Oid. But why isn't (if after all, Oids
are registered in Snmp::notify_register(.)) the callback started when trap
is received?