thess:

Has the FS user's new email been changed/validated in FS before attempting to use Github email?

Do you know the user-name involved - I'd like to check the FS Database records.

lynxis:

I've send you the name via mail including his new email address.

thess:

They should have been able to do this themselves by merely logging
in direct to FS - I guess if you forgot your psw or cannot access the old
email account, then an admin will have to handle it.

Account updated - closing this

lynxis:

No this is a problem of flyspray together with oauth. I should file a bug on the oauth plugin api.

aparcar:

I added a new mail address and set it to primary leading to Error #23
Today I changed primary mail back and I can login again.
Currently I have two active mail addresses in my GitHub account.