VMInterface template does not display Q-in-Q Service VLAN

[pheus]

Deployment Type

Self-hosted

NetBox Version

v4.2.8

Python Version

3.10

Steps to Reproduce

1. Create a VLAN SVLAN11 and assign it the Q-in-Q role Service.
2. Create a virtual machine VM1
3. Navigate to a virtual machine and add a VM Interface eth0.
4. Edit the VM Interface eth0, assign the 802.1Q role Q-in-Q and assign the Q-in-Q Service VLAN SVLAN11 under the “Q-in-Q Service VLAN” field.
5. Save the interface.
6. View the VMInterface detail page.

Expected Behavior

The Q-in-Q Service VLAN should be displayed in the VMInterface detail view.

Observed Behavior

The Q-in-Q Service VLAN is not displayed in the VMInterface detail page, even though it is assigned and stored in the database.

[pheus]

I'd be happy to contribute this, if accepted!