Fixed #5726 -- Documented that inspectdb doesn't detect defaults.
Fixed #4991 -- Emphasized XSS ramifications of help_text not being escaped.
Fixed #23282 -- Corrected inheritance and reverse relations example.

Thanks knowledgepoint-devs for the report and claudep for review.
Fixed #17272 -- Documented that non-editable fields are skipped during model validation.

Thanks mitar for the report.
Fixed #23314 -- Tempered recommendation of storing profile data on custom user.

Thanks gavinwahl for the report.
Replaced HAS_SPATIAL_DB by testing database feature

Refs #22632. This should be the base for using more database
features to exclude specific backends in GIS tests.
Thanks Tim Graham for the review.
Fixed broken tests on Oracle after 5853c87a458f62ebd62d7809168355610de2570c.

Oracle doesn't have a `BEGIN` statement so the test would
fail.

Refs #23303
Fixed #21801 -- Documented SingleObjectMixin.get_context_data() requires the object attribute.
Removed unused imports.
Fixed #23316 -- Added datetime.time serialization in migrations.
Fixed #22996 -- Prevented crash with unencoded query string

Thanks Jorge Carleitao for the report and Aymeric Augustin, Tim Graham
for the reviews.
Removed unnecessary code-block directives.
Fixed #10190 -- Made HttpResponse charset customizable.

Thanks to Simon Charette, Aymeric Augustin, and Tim Graham
for reviews and contributions.
Added sphinx extension to ease generation of ticket links.