UI: Import VM unable to match the VLAN 0 to Untagged VLAN

[rajujith]

problem

While importing VM from vcenter with CloudStack UI, VMs on vCenter with VLAN 0 are expected to be allowed to import to 'Untagged' VLAN guest networks in CloudStack. But it doesn't allow.

versions

4.22.0.0

The steps to reproduce the bug

1.Import a VM in vCenter with NIC on network without VLAN i.e VLAN 0.
2. Try selecting the guest network (shared for example) with 'Untagged' VLAN.

...

What to do about it?

UI needs to be fixed.