Comment 1 for bug 639772

django_openid_auth/auth.py line 71 checks the claimed id against existing ones in Django mapping user to openid account. The only thing I can figure is that we already had a user and openid mapping for him, but on this login we were given a different openid claimed id for the user than what we already had stored.

Consequently, it treated him as a new user, and since there was already a "netritious" django.auth.models.User account with that username, on line 104 is started adding an incrementing number to the username. This means there's likely also a "netritious1" user account and openid mapping, meaning this has happened at least twice now.