Account cannot be recovered or created: User does not exist + username in use?

[shampyon]

I had a gpodder account some time ago, using the same username and email address I'm using here on github. Today I attempted to recover the password, but received the following error message:

Your password could not be reset User does not exist.

So I attempted to create a new account using that username and email address, and got this message:

Create Account The username shampyon is already in use.

I also attempted login via Google, but received the error message;

No account connected with your Google account

It's like my account both exists and doesn't exist at the same time, making it impossible to recover or re-register without using a completely different email address and username.