If I void an invoice, what will happen to the time entries that were included in that invoice? Will they revert to "unbilled time"?

I rendered an invoice (didn't send it). Some days later, I recorded additional time to the project. Rather than creat a new invoice for the additional time, I'd like to have a single invoice that includes all of the time.

If I void the invoice, will the time included in that invoice show up when I create a new one?

Thanks.