New account notification without address details

Please help me with issue that I recently met.

When “One-page chekout” is On and a customer during checkout procedure selects “Register” button (not “Checkout as guest” and not the “Register” link in the My account sidebox) an account is created but “too early” - just after entering contact information (login, e-mail, password etc.) but BEFORE entering shipping/billing details. As a result a customer receives a half-empty notification about registration, that is without address details. I thought that was issue on my cart only but when I checked demo at I met the same problem.

It is necessary to say that in classical checkout procedure all works OK. Can anybody check it, pleae?

Thank you. Michael