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.

Correct flake8 E302 violations

The timezone arithmetic done in JS can be off by one hour around DST
change. We work around this issue by adding one extra hour to the test
error margin when we detect a DST change is near.

Refs #20663.

Fixed flake8 E241

Correct flake8 violation E261

Django should be capitalized in text

The regression was caused by ecaba360
and affected OR connected filters.

Thanks rpq at winscores.com for the report.

All request methods of ``django.test.client.Client`` receive a ``secure``
argument that defaults to ``False`` indicating whether or not to make the
request through https.
Thanks Aymeric Augustin for the review.

Fixed #9523 -- Restart runserver after translation MO files change

Thanks glarrain for the suggestion.

Thanks to Claude Paroz for the original patch.

Thanks to Krzysztof Kulewski for the initial patch.

Dependent means reliant on.
A dependant is a person like a child or spouse.

Thanks Andrew Wilcox for the report.

Fixed typo -- "a" user, not "an" user

Thanks thevlad at gmail.com for the report.

Thanks k_sze for the report.

Refs #21356. Thanks Loïc.

The ticket's issue was already fixed by patch for #14877.

Thanks Wouter Klein Heerenbrink for the report.