Closing this task as (1) category sorting was enabled as an option in core, and (2) investigation revealed that many editors currently expect categories to be an ordered list *not* a set. So we'll have to apply that learning to metadata update when we work on selective update.

Test wiki on Patch demo by Shizhao using patch(es) linked to this task was deleted:

Test wiki on Patch demo by Shizhao using patch(es) linked to this task was deleted:

Test wiki on Patch demo by Bawolff using patch(es) linked to this task was deleted:

Test wiki on Patch demo by Bawolff using patch(es) linked to this task was deleted:

In T382217#10410747, @Kipod wrote:

[...]

worse yet, there is an undisputable bug in the implementation of this (bad/wrong) feature:
even though the changes in hidden cats are not shown, they _are_ counted against the "show XXX last changes" selection.
IOW, if i choose to display 100 latest changes and show changes in categories, and it so happen that the 100 most recent changes in my watchlist are all additions/removals of pages from some hidden cat (something that can easily happen in real life, e.g. when using a tool like cat-a-lot, or making some change in a template which adds or removes large number of pages from some maintenance hidden category), the watchlist will show empty: those 100 "filtered out" changes push out all the other changes from the watchlist.

Technically (as far as I can see) this is a re-report of the issue reported in T161756: Unchecking category leads to more results on plwiki, but this task's description is more detailed/clear about what the issue is than that task's description, so I've merged that one over to here :)

Change #1144500 merged by Hnowlan:

[operations/puppet@production] mw::maintenance: migrate recountCategories job to k8s

https://gerrit.wikimedia.org/r/1144500

Change #1144500 had a related patch set uploaded (by Hnowlan; author: Hnowlan):

[operations/puppet@production] mw::maintenance: migrate recountCategories job to k8s

https://gerrit.wikimedia.org/r/1144500

This claims to solve it; does it?

It looks like it would be better, to save old database tables in a trashbin before changing database structures.

I also stumbled across this problem today. Do you still plan to restore the old values? And (more out of curiosity): Why do I still see one entry from 2024 in this list when everything was overwritten in February? (Hm. This article was moved on the day of the migration. A race condition maybe?)

I can't see how it could get parsed.

They are always categorizable programmatically. The respective content handler just needs to provide a "side channel" for categorization. This could be for example a reserved JSON key or even a new MCR slot.

They are always categorizable programmatically. The respective content handler just needs to provide a "side channel" for categorization. This could be for example a reserved JSON key or even a new MCR slot.

Change #1135754 merged by Clément Goubert:

[operations/puppet@production] alertmanager: Add routing for task alerts

https://gerrit.wikimedia.org/r/1135754

Change #1135753 merged by Clément Goubert:

[operations/puppet@production] alertmanager: Add team/project receivers for Phab

https://gerrit.wikimedia.org/r/1135753

Change #1135754 had a related patch set uploaded (by Clément Goubert; author: Clément Goubert):

[operations/puppet@production] alertmanager: Add routing for task alerts

https://gerrit.wikimedia.org/r/1135754

Change #1135753 had a related patch set uploaded (by Clément Goubert; author: Clément Goubert):

[operations/puppet@production] alertmanager: Add team/project receivers for Phab

https://gerrit.wikimedia.org/r/1135753

In T310051#10683519, @jhsoby wrote:

Now that the change has been deployed to ckbwiki, I think there's nothing more to do here. Thanks @Bawolff!

Now that the change has been deployed to ckbwiki, I think there's nothing more to do here. Thanks @Bawolff!

Change #1131651 merged by jenkins-bot:

[operations/mediawiki-config@master] Change category collation for ckbwiki

https://gerrit.wikimedia.org/r/1131651