#18376: Model formsets incorrectly apply unique checks to NULL fields --------------------------+------------------------------------------------ Reporter: acdha | Owner: nobody Type: Bug | Status: new Component: Forms | Version: 1.4 Severity: Normal | Keywords: formset admin list_editable unique Triage Stage: | Has patch: 0 Unreviewed | UI/UX: 0 Easy pickings: 0 | --------------------------+------------------------------------------------ This is similar to #13811 but applies to fields declared with ``unique=True`` rather than ``unique_together``: a model formset will incorrectly raise a ValidationError during ``validate_unique`` if more than one of the objects have a null value. I noticed this on a site using admin list_editable with a blank, null field but the problem appears to affect any model formset.
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