<b>Deprecated</b>: Use of ObjectCache::getMainWANInstance was deprecated in MediaWiki 1.28. [Called from TranslatablePage::isSourcePage in /www/dev.translatewiki.net/docroot/w/extensions/Translate/tag/TranslatablePage.php at line 858]
Documentation: https://doc.wikimedia.org/mediawiki-core/master/php/classObjectCache.html#a2b7dc1c2305ee06eab50f2a89599a51e