I am new to the commerce module, when i download the newest module which release in data 2012-Sep-22. I find one issue.
It will create duplicate billing information items if i check the checkbox "copy chipping information to billing information" and did not choose the existing address file.
Since many duplicate billing information items is annoying. Is it possible do not create a new billing information item when i check the checkbox and didn't choose any exist billing information item?