filter `present_in_vrf_id` returning more results than expected

[pl0xym0r]

Deployment Type

Self-hosted

NetBox Version

v4.0.10

Python Version

3.11

Steps to Reproduce

1 Use the data from https://github.com/netbox-community/netbox-demo-data
2 Add prefix in VRF shared
3 Use ipam/prefixes/?present_in_vrf_id=5 (echo VRF) to have all prefixes from Shared and Echo VRF

Expected Behavior

A display of all prefixes seen from Echo VRF point of view

Observed Behavior

All prefixes from Echo VRF are displayed twice
It seems the union of querysets returns twice the value of the VRF in parameter :

netbox/netbox/ipam/filtersets.py

Line 455 in 886d635

def filter_present_in_vrf(self, queryset, name, vrf):

tested into nbshell itself :

echo=VRF.objects.get(id=5)
queryset=VRF.objects.all()
queryset.filter(Q(id=5))
<RestrictedQuerySet [<VRF: Echo (65000:500)>]>
queryset.filter(Q(export_targets__in=echo.import_targets.all()))
<RestrictedQuerySet [<VRF: Shared (65000:1)>]>
queryset.filter(Q(id=5) |Q(export_targets__in=echo.import_targets.all()))
<RestrictedQuerySet [<VRF: Echo (65000:500)>, <VRF: Echo (65000:500)>, <VRF: Shared (65000:1)>]>

I found a kind of explanation on stackoverflow : https://stackoverflow.com/questions/4411049/how-can-i-find-the-union-of-two-django-querysets

Would the .distinct() method answer my issue?

[arthanson]

@pl0xym0r Can you please expand on your reproduction steps - where is "VRF shared", can you please detail which menu item you are going to, also I'm not seeing where you are getting Shared and Echo from.

[pl0xym0r]

All the data come from the demo-data

Even netbox demo has the issue:
1 go to prefix
2 filter : present_in_vrf select echo

Filter on delta VRF, same behavior:

All prefixes in VRF selected are shown twice (not expected), from VRF RT imported once as expected

[pl0xym0r]

if needed, I can update the functions. Idk if the same behavior is on IPAddressFilterSet as the same function exists. I'd like to update both

[arthanson]

@pl0xym0r I'll assign to you then.