Reset Password functionality breaks with changed email address (BB-573)
If a Reset Password is requested, the user must enter their email address, and a reset link is emailed to the account owner.
However: if the email address used during account signup is different from the current email address on file, the reset link will never arrive.
To solve this, I changed my account-specified email address back to the one I used when setting up the account. I then re-requested a password-reset, and that worked.
fyi - I was able to get into my account without my password, via OpenID, but I was unable to access my code repository until I reset the password. (just in case you were wondering).