Why are hosts queried with snmpv3 host tagged "snmp-v2"

CMK version:
2.0.0p18

I’m using snmp V3 and my host has these tags
Host Tags auto-piggyback ip-v4 ip-v4-only lan no-agent prod site:DFW snmp snmp-v2

Hi.
This is only a tag. SNMP-V2 means, taht V2 and V3 can use based on the given parameters. This also reduce the amount of tags. On GUI you can only choose “SNMP-V1” or “SNMPV2 and V3”.
RG,
Christian