# Django 4.2.9.dev20231204082947 - dokumentacja

# Django 2.1.3 release notes

November 1, 2018

Django 2.1.3 fixes several bugs in 2.1.2.

## Poprawki błędów

- Fixed a regression in Django 2.0 where combining `Q` objects with `__in` lookups and lists crashed (#29838).
- Fixed a regression in Django 1.11 where `django-admin shell` may hang on startup (#29774).
- Fixed a regression in Django 2.0 where test databases aren’t reused with `manage.py test --keepdb` on MySQL (#29827).
- Fixed a regression where cached foreign keys that use `to_field` were incorrectly cleared in `Model.save()` (#29896).
- Fixed a regression in Django 2.0 where `FileSystemStorage` crashes with `FileExistsError` if concurrent saves try to create the same directory (#29890).