Fixed #22979 -- Moved bug* tests
Only warn about initial data if fixtures have been found.
Fixed #23098 -- Checked that lazy choices are not evaluated too soon

Thanks Matthieu Agopian for the report.
Update from key ID in security.txt to authorized release keys list.
Correctly remove extraneous text about keys from previous edit.
Fixed #23062 -- Documented how to create superuser.

Patch by Tim Graham. Thanks areski for the review.