PHP fatal error in /usr/local/apache/common-local/php-1.20wmf3/extensions/Translate/specials/SpecialAggregateGroups.php line 151:
Call to undefined method Message::escapeId() on Meta.
For some reason, this does not happen on mediawiki.org: https://www.mediawiki.org/wiki/Special:AggregateGroups
Both wikis are running 1.20wmf3 (f4ebd67).
Version: wmf-deployment
Severity: normal
URL: https://meta.wikimedia.org/wiki/Special:AggregateGroups