#18376: Model formsets incorrectly apply unique checks to NULL fields
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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 |
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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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Ticket URL: <https://code.djangoproject.com/ticket/18376>
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