The part about transclusions not updating automatically is T59991: Changes in templates are not immediately reflected in Flow posts which transclude those templates.

However, removing and re-adding the template should still work.

This is apparently broken for all wiki references: https://www.mediawiki.org/wiki/Special:WhatLinksHere/obscure_red_link

And external references... https://www.mediawiki.org/w/index.php?target=fakedomain289.com&title=Special%3ALinkSearch

I believe I've figured out why this is happening (see below), but I'm still working on it.

• FeatureIndex::onAfterInsert (the one that updates cache data) seems to have some faults (doesn't re-compact). Apart from references, we never delete anything, so we probably never noticed.
• TopKIndex::removeFromIndex (and probably others) currently fails to locate a row in cache because the data in cache includes a currently unused ref_src_wiki column from when cache got populated from DB. We have some code to normalize rows, but that'll be hard to reach from there...
• TopKIndex::removeFromIndex may have other issues when finding an occurence of a value in index (e.g. different order of keys?)
• ReferenceRecorder::onAfterInsert probably shouldn't call LinksTableUpdater::doUpdate right away - that should be deferred until data has been committed (unless our buffered cache is that good, but still...). Otherwise, it compares the same data and can't figure out that categories have been removed.

In T94569#1560559, @matthiasmullie wrote:

• TopKIndex::removeFromIndex (and probably others) currently fails to locate a row in cache because the data in cache includes a currently unused ref_src_wiki column from when cache got populated from DB. We have some code to normalize rows, but that'll be hard to reach from there...

Should we block this on T107204: Separate reference tables by wiki so we don't have to work around it in the meantime?

Change 233432 had a related patch set uploaded (by Matthias Mullie):
[WIP] Fix references/storage

https://gerrit.wikimedia.org/r/233432

In T94569#1566271, @Mattflaschen wrote:

Should we block this on T107204: Separate reference tables by wiki so we don't have to work around it in the meantime?

I wanted to fix it for real because if we ever need to do schema changes again, we'd run into the same problem (and lose time trying to figure this out again) and there is no way to work around it until the schema changes are done.

Change 233432 merged by jenkins-bot:
Fix removal/addition of categorylinks

https://gerrit.wikimedia.org/r/233432

Checked in betalabs with the sample template from

The part about transclusions not updating automatically is T59991: Changes in templates are not >immediately reflected in Flow posts which transclude those templates.

T59991 filed Nov 2014) is still Open.

However, removing and re-adding the template should still work.

Removing and re-adding the template works now - the changes in templates will be displayed on pages that use them.