Fixes #2344: AttributeError when assigning VLANs to an interface on a device/VM not assigned to a site
Fixes #2344: AttributeError when assigning VLANs to an interface on a device/VM not assigned to a site

lampwins/netbox,digitalocean/netbox,digitalocean/netbox,digitalocean/netbox,digitalocean/netbox,lampwins/netbox,lampwins/netbox,lampwins/netbox