Recurring invoice with new invoice number

Dear Sir/Madam,

I have just created an invoice (with invoice #1001) on Apr 17, 2016 for the project, only part of the service items will be charged again in next year, e.g. the web hosting service. I created another invoice and marked it as recurring invoice, the start date will be Apr 17, 2017, but IP assigned an invoice number 1002 immediately, it is not sensible to have the invoice with number 1002 because it will be sent 1 year after. Should the invoice number not be assigned when creation? Otherwise the number sequence will be affected.

Did I do some step wrong?

Best regards,