Finally found a topic with good explanation an answers:
Didn't expect the config.json would influence such requests.
Is it possible to Deassociate sso like Facebook and google for the SSO plugins. If you want to change a google account but not create an new account?
No. Definitely bug, and possible security risk.
"security risk" if I Deassociate? Explain?
I mean if you can't disassociate, and your facebook etc. gets hacked, they got easy access to your forum.
Although, I guess that's a risk you take with any SSO, which is why I never use them when possible.
Yeah, thats true indeed. So a Deassociate function would be great It much easier to get people to signup with SSO