Duplicating Inventory records

When we duplicate an Inventory record, I believe that certain fields (i.e. Inventory Date, Due Date and Status) should NOT be copied to the new target record by default...

If you are creating a new Invoice for a customer, it is often simpler to duplicate the previous one and make small edits. So why would you want the same dates as the previous one and why would you want the Invoice to be created in a state of, for example, "Approved" or "Sent" or "Paid"?

I appreciate this might not be what everyone wants to happen but it seems to me that this could be configured in some way - a bit like with the field mapping for Lead Conversion or Opportunity->Project etc...