==========================
Django 1.7.2 release notes
==========================

*Under development*

Django 1.7.2 fixes several bugs in 1.7.1.

Additionally, Django's vendored version of six, :mod:`django.utils.six`, has
been upgraded to the latest release (1.8.0).

Bugfixes
========

* Fixed migration's renaming of auto-created many-to-many tables when changing
  :attr:`Meta.db_table <django.db.models.Options.db_table>` (:ticket:`23630`).

* Fixed a migration crash when adding an explicit ``id`` field to a model on
  SQLite (:ticket:`23702`).

* Added a warning for duplicate models when a module is reloaded. Previously a
  ``RuntimeError`` was raised every time two models clashed in the app registry.
  (:ticket:`23621`).

* Prevented :djadmin:`flush` from loading initial data for migrated apps
  (:ticket:`23699`).

* Fixed a :djadmin:`makemessages` regression in 1.7.1 when
  :setting:`STATIC_ROOT` has the default ``None`` value (:ticket:`23717`).

* Added GeoDjango compatibility with mysqlclient database driver.

* Fixed MySQL 5.6+ crash with ``GeometryField``\s in migrations
  (:ticket:`23719`).

* Fixed a migration crash when removing a field that is referenced in
  ``AlterIndexTogether`` or ``AlterUniqueTogether`` (:ticket:`23614`).

* Updated the first day of the week in the Ukrainian locale to Monday.

* Added support for transactional spatial metadata initialization on
  SpatiaLite 4.1+ (:ticket:`23152`).

* Fixed a migration crash that prevented changing a nullable field with a
  default to non-nullable with the same default (:ticket:`23738`).

* Fixed a migrations crash when adding ``GeometryField``\s with ``blank=True``
  on PostGIS (:ticket:`23731`).

* Allowed usage of ``DateTimeField()`` as ``Transform.output_field``
  (:ticket:`23420`).

* Fixed a migration serializing bug involving ``float("nan")`` and
  ``float("inf")`` (:ticket:`23770`).

* Fixed a regression where custom form fields having a ``queryset`` attribute
  but no ``limit_choices_to`` could not be used in a
  :class:`~django.forms.ModelForm` (:ticket:`23795`).

* Fixed a custom field type validation error with MySQL backend when
  ``db_type`` returned ``None`` (:ticket:`23761`).

* Fixed a migration crash when a field is renamed that is part of an
  ``index_together`` (:ticket:`23859`).

* Fixed :djadmin:`squashmigrations` to respect the  ``--no-optimize`` parameter
  (:ticket:`23799`).

* Made :class:`~django.db.migrations.operations.RenameModel` reversible
  (:ticket:`22248`)

* Avoided unnecessary rollbacks of migrations from other apps when migrating
  backwards (:ticket:`23410`).

* Fixed a rare query error when using deeply nested subqueries
  (:ticket:`23605`).

* Fixed a crash in migrations when deleting a field that is part of a
  ``index/unique_together`` constraint (:ticket:`23794`).

* Fixed ``django.core.files.File.__repr__()`` when the file's ``name`` contains
  Unicode characters (:ticket:`23888`).

* Added missing context to the admin's ``delete_selected`` view that prevented
  custom site header, etc. from appearing (:ticket:`23898`).

* Fixed a regression with dynamically generated inlines and allowed field
  references in the admin (:ticket:`23754`).

* Fixed an infinite loop bug for certain cyclic migration dependencies, and made
  the error message for cyclic dependencies much more helpful.

* Added missing ``index_together`` handling for SQLite (:ticket:`23880`).

* Fixed a crash when ``RunSQL`` SQL content was collected by the schema editor,
  typically when using ``sqlmigrate`` (:ticket:`23909`).

* Fixed a regression in ``contrib.admin`` add/change views which caused some
  ``ModelAdmin`` methods to receive the incorrect ``obj`` value
  (:ticket:`23934`).

* Fixed ``runserver`` crash when socket error message contained Unicode
  characters (:ticket:`23946`).

* Fixed serialization of ``type`` when adding a ``deconstruct()`` method
  (:ticket:`23950`).

* Prevented the
  :class:`~django.contrib.auth.middleware.SessionAuthenticationMiddleware` from
  setting a ``"Vary: Cookie"`` header on all responses (:ticket:`23939`).

* Fixed a crash when adding ``blank=True`` to ``TextField()`` on MySQL
  (:ticket:`23920`).

* Fixed index creation by the migration infrastructure, particularly when
  dealing with PostgreSQL specific ``{text|varchar}_pattern_ops`` indexes
  (:ticket:`23954`).

* Fixed bug in ``makemigrations`` that created broken migration files when
  dealing with multiple table inheritance and inheriting from more than one
  model (:ticket:`23956`).

* Fixed a crash when a ``MultiValueField`` has invalid data (:ticket:`23674`).

* Fixed a crash in the admin when using "Save as new" and also deleting a
  related inline (:ticket:`23857`).