zhwiki in beta fails with a PHP fatal on main page.
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	cscott
	Aug 3 2018, 9:43 PM

Description

Right now visiting https://zh.wikipedia.beta.wmflabs.org/wiki/%E9%A6%96%E9%A1%B5 gives a "our servers are experienceing a technical problem" with this PHP error listed:

Call to undefined method WikitextContent::getEntity()

Mentioned In: T201194: Beta cluster: Call to undefined method WikitextContent::getEntity() in /srv/mediawiki/php-master/extensions/Wikibase/lib/includes/Store/Sql/WikiPageEntityRevisionLookup.php on line 189

A few more details from a cursory investigation:

https://zh.wikipedia.beta.wmflabs.org/ is totally broken
the PHP fatal is "Call to undefined method WikitextContent::getEntity()", which isn't a method name in core, nor has includes/content/WikitextContent.php been changed in a meaningful way recently
probably a type mismatch. extensions/Wikibase/lib/includes/Store/EntityRevision.php defines 'public function getEntity()', that's my wild guess at what's supposed to be being called

@cscott Like with enwiki beta, this too is accessible except for the front page - https://zh.wikipedia.beta.wmflabs.org/wiki/Special:参数设置