# Django 2.2.9.dev20191202104323 文档

# Django 1.8.5 release notes

October 3, 2015

Django 1.8.5 fixes several bugs in 1.8.4.

## Bugfixes

- Made the development server's autoreload more robust (#24704).
- Fixed `AssertionError` in some delete queries with a model containing a field that is both a foreign and primary key (#24951).
- Fixed `AssertionError` in some complex queries (#24525).
- Fixed a migrations crash with `GenericForeignKey` (#25040).
- Made `translation.override()` clear the overridden language when a translation isn't initially active (#25295).
- Fixed crash when using a value in `ModelAdmin.list_display` that clashed with a reverse field on the model (#25299).
- Fixed autocompletion for options of non-`argparse` management commands (#25372).
- Alphabetized ordering of imports in `from django.db import migrations, models` statement in newly created migrations (#25384).
- Fixed migrations crash on MySQL when adding a text or a blob field with an unhashable default (#25393).
- Changed `Count` queries to execute `COUNT(*)` instead of `COUNT('*')` as versions of Django before 1.8 did (#25377). This may fix a performance regression on some databases.
- Fixed custom queryset chaining with `values()` and `values_list()` (#20625).
- Moved the unsaved model instance assignment data loss check on reverse relations to `Model.save()` (#25160).
- Readded inline foreign keys to form instances when validating model formsets (#25431).
- Allowed using ORM write methods after disabling autocommit with `set_autocommit(False)` (#24921).
- Fixed the `manage.py test --keepdb` option on Oracle (#25421).
- Fixed incorrect queries with multiple many-to-many fields on a model with the same 'to' model and with `related_name` set to '+' (#24505, #25486).
- Fixed pickling a `SimpleLazyObject` wrapping a model (#25389).