`bridge pvid error` on `bridge-allow-untagged no` port

[tik-stbuehler]

Hi,

I have a config like this:

auto bond2
iface bond2
	bond-mode 802.3ad
	bond-miimon 100
	bond-slaves enp194s0f0np0 enp194s0f1np1
	bridge-allow-untagged no
	bridge-vids 100-101 119-129

auto vmbr2
iface vmbr2
	bridge-ports bond2
	bridge-vlan-aware yes
	# https://vincent.bernat.ch/en/blog/2017-linux-bridge-isolation
	pre-up /sbin/bridge vlan del dev vmbr2 vid 1 self
	bridge-ports-condone-regex ^tap

And ifquery -c bond2 complains:

auto bond2                                                                                                                                                                                                                                   
iface bond2 (bridge pvid error)                                     [fail]                                                                                                                                                                   
        bond-slaves enp194s0f0np0 enp194s0f1np1                     [pass]                                            
        bond-mode 802.3ad                                           [pass]                                            
        bond-miimon 100                                             [pass]                                            
        bridge-vids 100-101 119-129                                 [pass]                                            

This seems to come from

ifupdown2/ifupdown2/addons/bridge.py

Lines 3805 to 3807 in cd74f0d

	elif not running_pvid or running_pvid != 1:
	ifaceobjcurr.status = ifaceStatus.ERROR
	ifaceobjcurr.status_str = 'bridge pvid error'

And I have no idea what that condition is supposed to actually do.

Maybe elif running_pvid: would be the correct check?
(The comparison of running_pvid and pvid seems overly complicated. I think one should pick proper values representing the "none" state and just check the values for equality.)

The ifquery output also doesn't show the bridge-allow-untagged line...