I used Meta as an example, which after T376132 will accept temp account names

Apparently that didn't make a difference.

Apparently a core bug:

tgr@mwmaint2002:~$ mwscript shell.php metawiki
> $am = new ApiMain()
> $pv = new MediaWiki\Api\Validator\ApiParamValidator( $am, MW::srv()->getObjectFactory())
> use MediaWiki\ParamValidator\TypeDef\UserDef;
> use Wikimedia\ParamValidator\ParamValidator;
> $pv->validateValue( $am, 'user', '~2024-7820', [ ParamValidator::PARAM_TYPE => 'user', UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'temp', 'interwiki' ] ] )

   MediaWiki\Api\ApiUsageException  Invalid value "~2024-7820" for user parameter "user".

> sudo $userdef = $pv->paramValidator->getTypeDef('user')
> sudo $userdef->processUser( '~2024-7820' )
= [
    "temp",
    null,
  ]

In T378032#10262039, @Tgr wrote:

I used Meta as an example, which after T376132 will accept temp account names

Apparently that didn't make a difference.

In fact, the error only occurs on Meta.
https://en.wikipedia.org/w/api.php?action=query&meta=globaluserinfo&guiuser=~2024-7820

tgr@mwmaint2002:~$ mwscript shell.php enwiki
...
> $pv->validateValue( $am, 'user', '~2024-7820', [ ParamValidator::PARAM_TYPE => 'user', UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'temp', 'interwiki' ] ] )
= "~2024-7820"

Introduced in rMWe66805c27422: Add temporary user type to UserDef I think. UserIdentityLookup::getUserIdentityByName() somewhat confusingly returns null if the user name is valid but the user does not exist locally.

Change #1085356 had a related patch set uploaded (by Dreamy Jazz; author: Dreamy Jazz):

[mediawiki/core@master] Allow UserDef 'temp' type to accept non-existing temp usernames

https://gerrit.wikimedia.org/r/1085356

Change #1085356 merged by jenkins-bot:

[mediawiki/core@master] Allow UserDef 'temp' type to accept non-existing temp usernames

https://gerrit.wikimedia.org/r/1085356

You can follow the steps in the task description or in T378091 for QA.

I used the API to globally block a temp and named user which did not exist on the local wiki.

I also looked up the same users on meta=globaluserinfo.

Test environment: https://meta.wikimedia.beta.wmflabs.org MediaWiki 1.44.0-alpha (f0dfd5e) 07:04, 1 November 2024.