There are categories defined by system messages:

• [[MediaWiki:Index-category]] (function addTrackingCategory in Parser.php)
• [[MediaWiki:Noindex-category]] (function addTrackingCategory in Parser.php)
• [[MediaWiki:Hidden-category-category]] (function addTrackingCategory in Parser.php)
• [[MediaWiki:Expensive-parserfunction-category]] (function limitationWarn in Parser.php)
• [[MediaWiki:Post-expand-template-argument-category]] (function limitationWarn in Parser.php)
• [[MediaWiki:Post-expand-template-inclusion-category]] (function limitationWarn in Parser.php)

There is no way to disable these categories. Removing the categorie name from message shows no effect.

Please provide a way to disable the category localy, maybe check with wfEmptyMsg before using.

Thanks.

Version: unspecified
Severity: enhancement