T198309: Enable MCR migration stage "write both, read new" on testwiki

Phabricator Link	T198309
Status	resolved
Priority	needs triage (violet)
Author	daniel (Daniel Kinzler)
Owner	Anomie (Brad Jorsch)
Projects	Multi-Content-Revisions (Done) StructuredDataOnCommons (SDC General) (Backlog) Wikidata (monitoring)
Subtasks	T198311: Enable MCR migration stage "write both, read new" on commons beta., T197817: Enable MCR migration stage "write both, read old" on testwiki, T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI, T183488: MCR schema migration stage 2: populate new fields
Parent Tasks	T198308: Enable MCR migration stage "write both, read new" on live systems
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Related Gerrit Changes:

Change	Subject	Status	Owner	Created	Last Modified	Project
454534	Set MCR migration to write-both/read-new on testwiki.	MERGED	Daniel Kinzler	22 Aug 2018	20 Sep 2018	operations/mediawiki-config