Login problem. Open id issue when I changed the domain name of the site while using the same database

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Hello. I am having a problem that probably is expected to happen.

I recently changed the name of the domain site but at the same time I kept the same database since I dont want to loose the current users with their questions etc.

Problem now is that when I try to login with my gmail account, askbot somehow doesnt recognize me. So, I am redirected to google server where I fill again my credentials and then askbot complains about duplicate user. So, it is something like a dead end!

I was looking to my database and I found a table with name django_authopenid_userassociation. If I reset anything there is going to help or I will destroy the application? Do you have any other solutions?