Voiding completed order does not update order tax

Voiding a completed order sets the quantities and line totals to zero, but fails to reset the order tax.

This results in an order total of zero but a positive order grand total equal to the original tax amount (for a non tax-inclusive order).

The issue seems to be caused by MOrderline.updateHeaderTax():

private boolean updateHeaderTax()
{
// Recalculate Tax for this Tax
if (!getParent().isProcessed())
if (!updateOrderTax(false))
return false;
...

As the (completed) order being voided is flagged as processed this prevents the tax from being updated.

Teo: Your name's on the updateOrderTax function, do you have any suggestions for fixing this? I assume we wouldn't want to just remove the check...

Regards,

Paul