Seperate vat lines for invoice discounts

Hello,

We have the following setups:

Sales & Receivables Setup
* Discount Posting = Invoice Discounts
* Cal. Inv. Discount = Yes
* Cal. Inv. Disc. per VAT ID = Yes

In the General Posting Setup for a particular combination, Sales Account and Sales Inv. Disc. Account are different.

We create a sales invoice for the particular combination and set the invoice discount to some non-zero value (less than the total amount).

When we post the invoice, two VAT lines are created; one for the sales account (credit) and another for the discount account (debit). But the accountant doesn't seem to like the situation, he / she wants to see a balance VAT line (sum of two).

I think it is a standard behavior and cannot be undone with a standard setup change, is it?