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django/docs/releases/4.1.2.txt
Mariusz Felisiak 5e0aa362d9
Fixed #33984 -- Reverted "Fixed #32980 -- Made models cache related managers."
This reverts 4f8c7fd9d9 and adds
two regression tests:
- test_related_manager_refresh(), and
- test_create_copy_with_m2m().

Thanks joeli for the report.
2022-09-30 18:18:33 +02:00

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==========================
Django 4.1.2 release notes
==========================
*October 4, 2022*
Django 4.1.2 fixes a security issue with severity "medium" and several bugs in
4.1.1.
Bugfixes
========
* Fixed a regression in Django 4.1 that caused a migration crash on PostgreSQL
when adding a model with ``ExclusionConstraint`` (:ticket:`33982`).
* Fixed a regression in Django 4.1 that caused aggregation over a queryset that
contained an ``Exists`` annotation to crash due to too many selected columns
(:ticket:`33992`).
* Fixed a bug in Django 4.1 that caused an incorrect validation of
``CheckConstraint`` on ``NULL`` values (:ticket:`33996`).
* Fixed a regression in Django 4.1 that caused a
``QuerySet.values()/values_list()`` crash on ``ArrayAgg()`` and
``JSONBAgg()`` (:ticket:`34016`).
* Fixed a bug in Django 4.1 that caused :attr:`.ModelAdmin.autocomplete_fields`
to be incorrectly selected after adding/changing related instances via popups
(:ticket:`34025`).
* Fixed a regression in Django 4.1 where the app registry was not populated
when running parallel tests with the ``multiprocessing`` start method
``spawn`` (:ticket:`34010`).
* Fixed a regression in Django 4.1 where the ``--debug-mode`` argument to
``test`` did not work when running parallel tests with the
``multiprocessing`` start method ``spawn`` (:ticket:`34010`).
* Fixed a regression in Django 4.1 that didn't alter a sequence type when
altering type of pre-Django 4.1 serial columns on PostgreSQL
(:ticket:`34058`).
* Fixed a regression in Django 4.1 that caused a crash for :class:`View`
subclasses with asynchronous handlers when handling non-allowed HTTP methods
(:ticket:`34062`).
* Reverted caching related managers for ``ForeignKey``, ``ManyToManyField``,
and ``GenericRelation`` that caused the incorrect refreshing of related
objects (:ticket:`33984`).