We’re seeing a positive quantity displayed on the invoice for a reversal(negative)cost transaction

We’re seeing a positive quantity displayed on the invoice for a reversal cost transaction, which should be negative.

Example scenario:

Transaction 11: Quantity = 5, Cost = 100

Cost rate is adjusted.

Transaction 12 (reversal): Quantity = -5, Cost = -100

Transaction 13 (new, updated rate): Quantity = 5, Cost = 120

Issue: On the invoice, Transaction 12 (the reversal) is showing Quantity = 5, but it should be -5.

Question: Why is the reversal quantity appearing as positive on the invoice?

Consider the below example from the system, here in the Invoice section Invoice number 7 is the original(11) and 9 is reversal (12). But on Invoice 9 the quatity is positive(Second image of Invoice page)