user/password problem related with OpenID previous register

This is the transcription on IRC

Ismael Olea: hi: I've got an authentication problem in Launchpad, I've registered with OpeinID but now it's asking me a password I don't have and when try to recover or register again the system get mad because my email exists and not exists at the same time (I'm a Schrodinger cat )
kiko: Ismael, hmm, you may need to register with a new email address and merge the accounts
Ismael Olea: kiko: thanks, I'll try
Ismael Olea: kiko: where is that merge option? :-m
maxb: https://launchpad.net/people/+requestmerge
Ismael Olea: Sorry, something just went wrong in Launchpad.
Ismael Olea: We’ve recorded what happened, and we’ll fix it as soon as possible. Apologies for the inconvenience.
Ismael Olea: (Error ID: OOPS-1386B2037)

fyi