I delete invoice# 1000 so that I can recreate it (due to another bug where the automated tax calculation won't work on this invoice unless it was enabled prior to creating this invoice ticket#2855634)

Then I create a new invoice and set the auto-incremented invoice# back down from 1001 to 1000 and Save.

Then I get this error:

"Invoice with same number exists"

Yet, when I go to my list of invoices and Filter, there's no filter option for Deleted, which makes sense unless there was a Trash / Empty Trash feature, which there is not.

Give me back my deleted invoice number! please