django1/docs/releases/1.8.6.txt

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==========================
Django 1.8.6 release notes
==========================
*Under Development*
Django 1.8.6 fixes several bugs in 1.8.5.
Bugfixes
========
* Fixed a regression causing ``ModelChoiceField`` to ignore
``prefetch_related()`` on its queryset (:ticket:`25496`).
* Allowed "mode=memory" in SQLite test database name if supported
(:ticket:`12118`).
* Fixed system check crash on ``ForeignKey`` to abstract model
(:ticket:`25503`).
* Fixed incorrect queries when you have multiple ``ManyToManyField``\s on
different models that have the same field name, point to the same model, and
have their reverse relations disabled (:ticket:`25545`).
* Allowed filtering over a ``RawSQL`` annotation (:ticket:`25506`).
* Made the ``Concat`` database function idempotent on SQLite (:ticket:`25517`).
* Avoided a confusing stack trace when starting :djadmin:`runserver` with an
invalid :setting:`INSTALLED_APPS` setting (:ticket:`25510`). This regression
appeared in 1.8.5 as a side effect of fixing :ticket:`24704`.
* Made deferred models use their proxied model's ``_meta.apps`` for caching
and retrieval (:ticket:`25563`). This prevents any models generated in data
migrations using ``QuerySet.defer()`` from leaking to test and application
code.