T198563: Make "write both, read old" the default MCR migration stage on master / for CI

Phabricator Link	T198563
Status	resolved
Priority	normal (orange)
Author	[1]
Owner	Anomie (Brad Jorsch)
Projects	Patch-For-Review Core-Platform-Team-Old (CPT-Q1-Jul-Sep-2018) (Closed) MW-1.32-notes (WMF-deploy-2018-07-24 (1.32.0-wmf.14)) Wikidata (incoming) Multi-Content-Revisions (Done)
Subtasks
Parent Tasks	T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI
Tags

Related Gerrit Changes:

Change	Subject	Status	Owner	Created	Last Modified	Project
425519	[MCR] [DNM] Set MCR migration stage to write-both/read-old.	ABANDONED	Daniel Kinzler	11 Apr 2018	22 Aug 2018	mediawiki/core
446065	Set default wgMultiContentRevisionSchemaMigrationStage to write-both	MERGED	Anomie	16 Jul 2018	19 Jul 2018	mediawiki/core
[2]		CLOSED	Error while fetching data from URL https://gerrit.wikimedia.org/r/accounts//detail: $2. There was a problem during the HTTP request: 404 Not Found Could not get URL https://gerrit.wikimedia.org/r/accounts//detail after 3 tries.Anomie	19 Apr 2024	19 Apr 2024
[3]		OK	Could not get URL https://gerrit.wikimedia.org/r/accounts//detail after 3 tries.Anomie	19 Apr 2024	19 Apr 2024
[4]		OK	Could not get URL https://gerrit.wikimedia.org/r/accounts//detail after 3 tries.Anomie	19 Apr 2024	19 Apr 2024