question about Open ID accounts on the wiki

[ratcreature]

Back in October I chose to sign up to Fanlore with Open ID to avoid dealing with yet another password, and picked my LJ address to authenticate me. However with the Fanlore discussion community being now here on DW it would make more sense to authenticate with my DW URL. Admittedly my username is the same across services so it doesn't matter that much for easy identification and transparency in discussions, but it seems neater somehow. Is there a way to change the URL, while making it clear to the wiki that this is the same person, and retaining the editing history and such?