#22539: Model.full_clean() mutates exclude argument
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Reporter: maggotfish@… | Owner: nobody
Type: Bug | Status: new
Component: Database layer (models, ORM) | Version: master
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 1
Easy pickings: 1 | UI/UX: 0
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If model.full_clean() gets a list argument for `exclude`, and after
running clean_fields() errors are raised, it appends the names of those
fields to the `exclude` argument, mutating it and causing a really bad
side effect which is not expected by the user.
Instead, the list should be copied if it is not None.
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Ticket URL: <https://code.djangoproject.com/ticket/22539>
Django <https://code.djangoproject.com/>
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