deprecated ones.

Thanks to bouke for pointing this out.

Thanks Claude for catching it.

It's possible to use something like {{ foo|dictsort:'bar.baz' }}
but this wasn't tested or documented.

Thanks Tim.

Improved documentation about zh-* deprecation and upgrade path.

Thanks to Baptiste Mispelon for the code reviews.

This issue was fixed when the contenttype restriction was moved from
where clause to the join clause. So, this is tests only addition.

Fixed #18149 -- Changed language codes for Chinese

Language codes for Chinese are zh_Hans (Simplified) and zh_Hant (Traditional).
Added support for browsers that still send the deprecated language codes.

Thanks to Olli Wang for the report.

#14170 -- Reset i18n cache when settings changed

Otherwise the kqueue-based autoreloader may not see changes to files
that weren't imported when the server started.

Thanks Bouke Haarsma for the report and Loïc Bistuer for locating the
problem.

Thanks to Henrik Levkowetz and olau for their reports and initial patches.

Cleanup/pep8 tests

Fixed flake8 E251 violations

Signed-off-by: Jason Myers <jason@jasonamyers.com>

Depending on the order of the tests beeing run, 10 can be a valid pk,
0 can never be a valid pk and as such we will get the wanted ValidationError.

Refs #21302

model_to_dict() (used when rendering forms) queries the database
to get the list of primary keys for ManyToMany fields. This is
unnecessary if the field queryset has been prefetched, all the
keys are already in memory and can be obtained with a simple
iteration.

Fixed failing test around DST change.

Signed-off-by: Jason Myers <jason@jasonamyers.com>

Signed-off-by: Jason Myers <jason@jasonamyers.com>