This commit also added tests for LazyObject and refactored
the testsuite of SimpleLazyObject so that it can share
test cases with LazyObject.

This seems worthwhile in its own right, but also works around an Oracle
bug (in versions 10 -- 11.1) where the use of Unicode would reset the
date/time formats, causing ORA-01843 errors.

Thanks Trac users CarstenF for the report, jtiai for the initial patch,
and everyone who contributed to the discussion on the ticket.

Failing test introduced in fix for refs #22210.

- Docs description of arguments mix up.
- Keep it from erroneously masking E332 check.
- Add checks E338 and E339, tweak message of E337.

refs #21092 and 8d7e048a

Tweak password admin change form view context. Refs #21293.

Thanks Wes Kendall for the report.

By removing the absolute positioning of the usertools div and using
float positioning, the #header div will expand based on the height of
its content.

Thanks EvilDMP for the report.

Thanks Benjamin White for the report.

Previously, saving a model instance to a non-related field (in
particular a FloatField) would silently convert the model to an Integer
(the pk) and save it. This is undesirable behaviour, and likely to cause
confusion so the validatio has been hardened.

Thanks to @PirosB3 for the patch and @jarshwah for the review.

Fixed #22239 -- Add auto detection of renamed models

Thanks Aymeric Augustin for the report.

Many newbies don't know what a factory method is, nor is it pertinent to the
information the tutorial hopes to convey.

Since we don't enforce order between apps, root packages of contrib apps
cannot import models from unrelated apps.

Fix #22005, refs #21719.

This reverts commit a718fcf2.

Change database test settings from "TEST_"-prefixed entries in the
database settings dictionary to setting in a dictionary that is itself
an entry "TEST" in the database settings.

Refs #21775

Thanks Josh Smeaton for review.

Fixed #22073 - Ensure CreateTable operation handles backwards migration correctly when M2M fields are present

Environment keys/values need to use native strings on some
plateforms. Thanks anubhav joshi for detecting the issue and
helping shaping the patch.