cant unset a device interface vlan mode without an error

[ITJamie]

Deployment Type

Self-hosted

NetBox Version

v4.2.7

Python Version

3.11

Steps to Reproduce

1. create a device
2. create an interface on a device
3. set the mode on the interface to tagged
4. set the untagged vlan on that interface.
5. save
6. edit the interface
7. unset vlan mode ( press the x button in that form field, the untagged vlan field will dissapear )
8. press save - get error

Expected Behavior

vlan mode gets unset + untagged / tags vlans get deleted

Observed Behavior

an error was raised

<class 'ValueError'>

'InterfaceForm' has no field named 'untagged_vlan'.

Python version: 3.12.3
NetBox version: 4.2.7-Docker-3.2.0

[arthanson]

Traceback (most recent call last):
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/views/generic/base.py", line 104, in view
    return self.dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/netbox/netbox/views/generic/object_views.py", line 182, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/netbox/netbox/views/generic/base.py", line 26, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/netbox/utilities/views.py", line 125, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/netbox/utilities/views.py", line 39, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/views/generic/base.py", line 143, in dispatch
    return handler(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/netbox/netbox/views/generic/object_views.py", line 278, in post
    if form.is_valid():
       ^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/forms/forms.py", line 197, in is_valid
    return self.is_bound and not self.errors
                                 ^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/forms/forms.py", line 192, in errors
    self.full_clean()
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/forms/forms.py", line 327, in full_clean
    self._post_clean()
  File "/Users/ahanson/dev/work/netbox/netbox/netbox/forms/base.py", line 78, in _post_clean
    return super()._post_clean()
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/forms/models.py", line 500, in _post_clean
    self._update_errors(e)
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/forms/models.py", line 472, in _update_errors
    self.add_error(None, errors)
  File "/Users/ahanson/dev/work/netbox/venv/lib/python3.12/site-packages/django/forms/forms.py", line 292, in add_error
    raise ValueError(
ValueError: 'InterfaceForm' has no field named 'untagged_vlan'.