django__django-13158
QuerySet.none() on combined queries returns all results.
Verdict: disputed: one of the two checks found quoted evidence (not counted as a flag).
QuerySet.none() doesn't work properly on combined querysets, it returns all results instead of an empty queryset.
Disputed: one of the two checks found a pointer to the fix, the other found nothing. Not counted as a flag; the quote is on the task page.
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