CentralAuth currently calls the UserInvalidateEmailComplete hook (since https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CentralAuth/+/61912/), but unfortunately this hook doesn't exist; InvalidateEmailComplete however does exist.
Unfortunately I'm not sure how to proceed here (if CentralAuth's hook caller code should just be removed, or if the typo should be fixed), so I'm leaving this for other developers who know more about the CentralAuth extension. This issue was originally found while trying to document stuff on MW.org (https://www.mediawiki.org/wiki/Topic:Vs8j9igitmshxi0e).
Codesearch query here: https://codesearch.wmcloud.org/search/?q=InvalidateEmailComplete&i=nope&files=&repos=