Unable to merge a branch with non-existing custom fields

[peteeckel]

Plugin Version

0.3.0

NetBox Version

4.1-beta1

Python Version

3.11.5

Steps to Reproduce

Disclaimer: I have only tested with NetBox DNS so far.

1. Create a branch
2. Perform some arbitrary changes in NetBox DNS
3. Try to merge the branch

Expected Behavior

The branch is merged

Observed Behavior

The branch status shows the following error message:

When I look at the diffs, I see the following entry for the changes to the View object:

The data shown under 'before' are all None, which is definitely not correct - the same is true for the other objects. The only exception is with deletes, where the before data correctly represents the status before the object was deleted.

[peteeckel]

Additional information:

### Python 3.11.5 | Django 5.0.7 | NetBox NetBox Community v4.1.0-beta1
### lsmodels() will show available models. Use help(<model>) for more info.
>>> from netbox_dns.models import View
>>> for view in View.objects.all():
...     print(view.custom_fields)
... 
<RestrictedQuerySet []>
<RestrictedQuerySet []>
<RestrictedQuerySet []>
>>> for view in View.objects.all():
...     print(view.custom_field_data)
... 
{}
{}
{}

[jeremystretch]

2. Perform some arbitrary changes in NetBox DNS

Please detail specifically what change you're making, so that we can reproduce it exactly.

[peteeckel]

OK, I failed to reproduce exactly this error with a fresh database, so I'll open another issue.