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.

Fixed #26954 -- Prevented ModelAdmin.has_module_permission()=False from blocking access to the app index page.

Thanks Tim Graham for the review.

The Content-Transfer-Encoding header won't be repeated, so checking
the header is sufficient.

Unused since b68212f5.

The test was silently skipped.

Unused since 8f305563.

"from django.db.models import *" in contrib/gis/db/models/__init__.py could
obscure gis's functions.py resulting in exceptions like:
"module 'django.db.models.functions' has no attribute 'Union'".

Thanks Ola Sitarska for the initial patch.

Thanks Tim Graham for review.