If by "logged in", you mean "showing up in the Other Users nodelet", that is because it is cached. As "presence" is a fragile concept with HTTP anyway, as HTTP itself is basically stateless, I wouldn't put too much weight on the accuracy of the Other Users nodelet anyway.

In reply to Re: Can a user be both logged out & logged in at the same time ? by Corion
in thread Can a user be both logged out & logged in at the same time ? by Bloodnok

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