[YAhMuQpAAEEAAFt6bTUAAAEC] /wiki/Special:AbuseFilter/history/85/diff/prev/742 MediaWiki\Extension\AbuseFilter\Filter\ClosestFilterVersionNotFoundException: No version of filter 85 closest to 742 found
from /srv/mediawiki/php-1.36.0-wmf.27/extensions/AbuseFilter/includes/FilterLookup.php(338) #0 /srv/mediawiki/php-1.36.0-wmf.27/extensions/AbuseFilter/includes/View/AbuseFilterViewDiff.php(162): MediaWiki\Extension\AbuseFilter\FilterLookup->getClosestVersion(integer, integer, string) #1 /srv/mediawiki/php-1.36.0-wmf.27/extensions/AbuseFilter/includes/View/AbuseFilterViewDiff.php(75): MediaWiki\Extension\AbuseFilter\View\AbuseFilterViewDiff->loadData() #2 /srv/mediawiki/php-1.36.0-wmf.27/extensions/AbuseFilter/includes/Special/SpecialAbuseFilter.php(161): MediaWiki\Extension\AbuseFilter\View\AbuseFilterViewDiff->show() #3 /srv/mediawiki/php-1.36.0-wmf.27/includes/specialpage/SpecialPage.php(645): MediaWiki\Extension\AbuseFilter\Special\SpecialAbuseFilter->execute(string) #4 /srv/mediawiki/php-1.36.0-wmf.27/includes/specialpage/SpecialPageFactory.php(1405): SpecialPage->run(string) #5 /srv/mediawiki/php-1.36.0-wmf.27/includes/MediaWiki.php(310): MediaWiki\SpecialPage\SpecialPageFactory->executePath(Title, RequestContext) #6 /srv/mediawiki/php-1.36.0-wmf.27/includes/MediaWiki.php(944): MediaWiki->performRequest() #7 /srv/mediawiki/php-1.36.0-wmf.27/includes/MediaWiki.php(548): MediaWiki->main() #8 /srv/mediawiki/php-1.36.0-wmf.27/index.php(53): MediaWiki->run() #9 /srv/mediawiki/php-1.36.0-wmf.27/index.php(46): wfIndexMain() #10 /srv/mediawiki/w/index.php(3): require(string) #11 {main}
Impact
Noticed shortly after rolling 1.36.0-wmf.27 to group0.
Exception reliably displayed at the URL, which is findable from "Changes" link here:
https://www.mediawiki.org/wiki/Special:AbuseFilter/history/85/
Was also able to reproduce for filter 83:
https://www.mediawiki.org/wiki/Special:AbuseFilter/history/83/diff/prev/746
Doesn't happen for every filter, but seems to be more general than just for 85.
Notes
Blocking train on this but not yet rolling back as it's only been hit by users a couple of times. Input welcome.