https://github.com/wbstack/mediawiki/pull/439

I pinned our version of wikimedia/mediawiki-extensions-Math to 2822d35380c87960c56111be025fd2c5817e919e - https://github.com/wbstack/mediawiki/pull/439/commits/7085e13016b7155f471d734792cd79205a899076

This was needed because one of our CI checks from mediawiki.verify.yml failed with the new version Run curl -L -s -N "http://site1.localhost:8001/w/rest.php" | grep -q "did not match any known handler"

https://phabricator.wikimedia.org/P61095
vs
https://phabricator.wikimedia.org/P61096

I have not investigated if this is an upstream bug or something the wikibase.cloud engineers need to fix, this is still to be determined, but using an older version unblocks the deployment of the security fixes for now. What I found out though is that the problem is a defect filepath stat failed for /var/www/html/w//var/www/html/w/extensions/Math/popupRestRoutes.json that is related to https://github.com/wikimedia/mediawiki-extensions-Math/commit/a8e8717bb9e1cf1a6dbb54f967937fc1979da760#diff-9ed2b93fa9e08cdce5c86e3e009e739ee85ff05dc8c4767dc2cefeec3af1e38bR23

A sidetrack of working on this ticket spawned discussions between me and @Tarrow about the wbstack mediawiki sync process and a PR with the intention to improve working with it https://github.com/wbstack/mediawiki/pull/428

Together we looked at the current wikiman.yaml: https://github.com/wbstack/mediawiki/blob/10f89301b7596e42cad19848542713cccd680588/wikiman.yaml
and concluded that:

• for now we don't need the repoRef pin for the mediawiki repo and should remove it
• we don't need to use our custom wikibase tarballs anymore (https://github.com/wbstack/mediawiki-tars) since the purpose was including non-upstream features (which we probably could still do via the patchUrl functionality of the sync scripts)
  • and instead move back to the wmf distributed archive again, for now https://www.mediawiki.org/wiki/Special:ExtensionDistributor / https://github.com/wbstack/mediawiki/blob/b86dd2e8922b98c55b0f502eaffe7e29ddfed567/wbstack/sync/02-fetch.sh#L68

The issue with the Math extension resolved itself by using the latest mediawiki 1.39 and wikibase code.

Double checked today that the wmf extdist tarball contains the git submodules - can confirm it does