using interface groups in pf tables stopped working in 13.0-RELEASE

[Peter Ankerstål]

In pf I use the interface group syntax alot to make the configuration more readable. All interfaces are assigned to a group representing its use/vlan name. 

For example:

ifconfig_igb1_102="172.22.0.1/24 group iot description 'iot vlan' up"
ifconfig_igb1_102_ipv6="inet6 2001:470:de59:22::1/64"

ifconfig_igb1_300="172.26.0.1/24 group mgmt description 'mgmt vlan’ up"
ifconfig_igb1_300_ipv6="inet6 2001:470:de59:26::1/64”

in pf.conf I use these group names all over the place. But since I upgraded to 13.0-RELEASE it no longer works to define a table using the :network syntax and interface groups:

table   <nat_addresses> const { trusted:network mgmt:network dmz:network guest:network edmz:network \
        admin:network iot:network client:network }

If I reload the configuration I get the following:
# pfctl -f /etc/pf.conf
/etc/pf.conf:12: cannot create address buffer: Invalid argument
pfctl: Syntax error in config file: pf rules not loaded

I have tried to use just one network, double check the interface group setting and so on, but with no luck. 

to use actual interface works just fine:

table   <nat_addresses> { igb1.300:network }

but using the group fails:

# ifconfig -g mgmt
igb1.300

table   <nat_addresses> { mgmt:network }

# pfctl -f /etc/pf.conf
/etc/pf.conf:12: cannot create address buffer: Invalid argument
pfctl: Syntax error in config file: pf rules not loaded

Any ideas? 

Thanks!

/Peter.