This is a security fix. Disclosure following shortly.

Forward port of 49280a73 from stable/1.7.x

Transifex doesn't have zh_Hans/zh_Hant locales.
Forward port of c586fcd4 from stable/1.7.x

Thanks to Simon Charette, Aymeric Augustin, and Tim Graham
for reviews and contributions.

Thanks Jorge Carleitao for the report and Aymeric Augustin, Tim Graham
for the reviews.

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

Refs #23303

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.

Thanks gavinwahl for the report.

Thanks mitar for the report.

Thanks knowledgepoint-devs for the report and claudep for review.

Thanks Klaas van Schelven for the report and Tim Graham for the
review.

Thanks Anubhav Joshi for the patch.

Fixed #23298 -- Made makemessages actually ignore specified dirs on Wind...

Fixed #23295 -- Removed unnecessary fix_location_header request.get_host() check

This was detected by two failures in the i18n.test_extraction of our
test suite.

Refs #20422, refs #22336

Thanks to Florian Apolloner for the review; refs #23288.