Filter lookup empty on object custom fields is broken in web UI #99

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opened 2026-04-05 16:21:39 +02:00 by MrUnknownDE · 0 comments
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Originally created by @miaow2 on 3/23/2026

NetBox Edition

NetBox Community

NetBox Version

v4.5.5

Python Version

3.12

Steps to Reproduce

  1. Create a custom field with type object, for example, add a custom field to clusters on prefixes
  2. Go to Filters tab on /ipam/prefixes page
  3. In Custom fields for Cluster field choose is empty or is not empty
  4. Press Search

Expected Behavior

Should be shown filtered prefix table

Observed Behavior

Image

P.S. Only list views in web UI are broken. Filtering in REST API is working fine.

*Originally created by @miaow2 on 3/23/2026* ### NetBox Edition NetBox Community ### NetBox Version v4.5.5 ### Python Version 3.12 ### Steps to Reproduce 1. Create a custom field with type object, for example, add a custom field to clusters on prefixes 2. Go to `Filters` tab on `/ipam/prefixes` page 3. In Custom fields for Cluster field choose `is empty` or `is not empty` 4. Press `Search` ### Expected Behavior Should be shown filtered prefix table ### Observed Behavior <img width="1823" height="942" alt="Image" src="https://github.com/user-attachments/assets/309d4e2d-999d-48ff-ad05-c218ba43552d" /> P.S. Only list views in web UI are broken. Filtering in REST API is working fine.
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Reference: github/netbox#99