Something seems to make user id 0 'stick', causing errorless login failures.

[Vekseid]

I think it's loadUserSettings() in Load.php, but I am not yet certain. I know what happens is user id 0 gets passed to setLoginCookie and the user gets instantly logged out, and needs to wait awhile before they can login.

I'm still trying to decipher this to figure out what the problem actually is. It isn't easy to reproduce.

[Vekseid]

Okay, I figured out what was going on.

My MediaWiki integration is setting subdomain independent cookies, while my install was only setting domain ones. This causes things to get confused, as the independent cookie will clobber the direct one.

While it is kind of esoteric I can see situations where this can impact normal users (changing the setting, especially away from subdomain independent), though it's probably low priority.

[emanuele45]

hmm... I think it's something "known", but not tracked. Well, now it is. 😁

[Spuds]

should be combined with #3368