Use canonical ParserOptions for WikiPage::getParserOutput()

Authored by Anomie on May 19 2017, 1:52 PM.

Description

Use canonical ParserOptions for WikiPage::getParserOutput()

As it is, this could pollute parser caches with a version lacking tidy
and the limit report if it's not already cached. MediaWiki core change
I7fb9ffca9 is going to make that be an error.

Bug: T110269
Change-Id: I4070a8f51927121f690469716625db4a1064dea5

Details