[15:25:05] <wikibugs>	 10Analytics, 10MediaWiki-Authentication-and-authorization, 10MediaWiki-Platform-Team: Clear site data on MediaWiki log out - https://phabricator.wikimedia.org/T179752#3734949 (10Anomie) Note that we specifically want certain things to remain present after logout, including the user name cookie used to prefil...