Is it possible to prevent cancelled invoice lines from being sent for approval ?

Summary:

At the moment when we cancel an invoice line and then create a new line with a different cost center, the invoice approval notification is still being sent to the first cost center manager even though the invoice line for their cost center has been cancelled and has Amount = 0

Content (required):

It is a waste of the cost center manager's time to approve invoice lines that have been cancelled and have Amount = 0 . We are trying to update the invoice approval rules so that cancelled invoice lines are not sent for approval. 

We added the condition “Invoice Line.Discarded Status Indicator” is not "Y" to the invoice approval rule in the “Invoice Approval Rule Set”, as we saw in the invoice lines table that the field "Discarded Status Indicator" = "Y" when an invoice line is cancelled, but the approval notification is still being sent to the Cost Center Manager of the cancelled line and then after that to the cost center manager of the new invoice line.