https://www.mediawiki.org/wiki/Manual:Hooks/BSPageTemplatesBeforeRender
Extension:PageTemplates/Hooks/BSPageTemplatesBeforeRender - MediaWiki
extensionhooksmediawiki
https://support.atlassian.com/confluence/kb/unable-to-delete-user-with-comatlassianconfluencespacesspacepagetemplates-exception/
Unable To Delete User with com.atlassian.confluence.spaces.Space.pageTemplates Exception |...
Learn how to resolve the com.atlassian.confluence.spaces.Space.pageTemplates error when deleting a user in Confluence.
delete user