#2361: QuerySet.filter(m2mfield__isnull=False) may return duplicates
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Reporter: daniel.tietze@… | Owner: Norbert
| Stüken
Type: Bug | Status: assigned
Component: Database layer | Version: dev
(models, ORM) |
Severity: normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Carlton Gibson):
FWIW I also didn't read the "Spanning multi-valued relationships"
`filter(A).filter(B)` vs `filter(A, B)` example as entailing the
`filter(m2m__isnull)` example here.
(I'd have to sit down with a piece of paper to see why that's equivalent.
🙂)
Maybe expanding that section though, so it's on topic (by section title at
least)?
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Ticket URL: <https://code.djangoproject.com/ticket/2361#comment:19>
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