Firefang.net

While managing my firestats-users google group, all the sudden I noticed I am logged in under a different user - Victoria from Washington D.C.
just like that, one moment I am under my own user, and in the next I am under Victoria’s user.
I could see what groups she is reading, send myself an invitation for one of her groups and even edit her profile(!).
I emailed her and Google about it.

Google, you messed up.

This is how it looks (a slightly censored version):

Update:
Google claim to have fixed it:

Thank you for contacting us. We’ve made some changes recently that should
have resolved the problem you reported in our discussion group. Please let
us know if this issue persists.

Regards,
The Google Team