Thanks Tim Graham for the review and edits.

When a FileField is set to an instance of File that is not also an
instance of FieldFile, pre_save() passes that object as the contents to
Storage.save(). This allows the file to be moved rather than copied
to the upload destination.

This reverts commit 1ec1633c as it
doesn't handle ContentType's auth.Permission dependency. Thus, it
doesn't allow auth without migrations.

Fixed #27385 -- Fixed QuerySet.bulk_create() on PostgreSQL when the number of objects is a multiple plus one of batch_size.

Unknown if it was ever used.

Fixed #27368 -- Modifed BaseEmailBackend.__enter__() to close the connection if an exception occurs.

Fixes unclosed socket ResourceWarning in mail test.

Thanks Claude Paroz for the review.

Fixed #27352 -- Doc'd social media fingerprinting consideration with login's redirect_authenticated_user.

Unknown if it was ever used.

Unused since a170c3f7.

Also added security release date notifications to django-announce.

Unused (always False) after 29132ebd.

Unused since 5008a4db.

cdfdcf4b missed this test.

This makes gzip output deterministic, which allows
ConditionalGetMiddleware to reliably compare ETags on gzipped
content (views using the gzip_page() decorator in particular).

Unknown if it was ever needed.

Unknown if it was ever needed.

Unused since 0c763317.

Django's conditional request processing can now produce 304 Not Modified
responses for content that is subject to compression.

Unused since ed1bcf05.