[3.0.x] Fixed #31190 -- Fixed prefetch_related() crash for GenericForeignKey with custom ContentType foreign key.

Regression in dffa3e1992.

Backport of 0b013564ef from master
This commit is contained in:
Eugene Hatsko 2020-01-21 10:12:25 +03:00 committed by Mariusz Felisiak
parent d7e4d6463c
commit a56e45a2bf
3 changed files with 19 additions and 1 deletions

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@ -35,3 +35,7 @@ Bugfixes
* Fixed a regression in Django 2.2.7 that caused
:meth:`~django.db.models.Model.get_FOO_display` to work incorrectly when
overriding inherited choices (:ticket:`31124`).
* Fixed a regression in Django 3.0 that caused a crash of
``QuerySet.prefetch_related()`` for ``GenericForeignKey`` with a custom
``ContentType`` foreign key (:ticket:`31190`).