Deprecated: Use of User::makeGroupLinkHTML was deprecated in MediaWiki 1.29.
[Called from CheckUser::buildGroupLink in /home/www/lib/mediawiki-1.29.0-rc.0/extensions/CheckUser/specials/SpecialCheckUser.php at line 1514]
in /home/www/lib/mediawiki-1.29.0-rc.0/includes/debug/MWDebug.php on line 309
This happens in Special:CheckUser when "Get edits" or "Get users" options are checked, the form is submitted and positive matches are found