-current cloner interfaces broken/gone/unusable

[Frank Kardel <kardel%netbsd.org@localhost>]

Hi,

using -current as of 20180421 (NetBSD 8.99.14 (GENERIC) #0: Sat Apr 21 
23:01:29 UTC 2018 
mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64)

no cloning interfaces are visible:

gateway# ifconfig -l
ixg0 ixg1 ixg2 ixg3 lo0 tun0 tun1
gateway# ifconfig -C
ifconfig: SIOCIFGCLONERS for count: Device not configured
gateway# ifconfig vlan0 create
ifconfig: clone_command: Device not configured
ifconfig: exec_matches: Device not configured
gateway#

This does not seem to be a desirable state - any clues what broke here ?

Frank