Strange Stock Reduction Issue

Hi,

We have two stock locations, both set to auto allocate. Location A has 70 in stock, Location B has 64 in stock for a particular product. When the user completes the order, we log into the admin order view and we can see the location select but both locations have a quantity of 0 inputted, which appears to be that location stock was not deducated. After some digging i found out that in the source code, both locations were set with allocated_quantity = line_item_quantity. Which means it was trying to deduct from both locations, but since you have some logic which prevents that (see below) the stock is never reduced.
file: helper-slw-order-item.php

 if (array_sum($locationStockMap) !== $lineItem->get_quantity()) {
                    continue;
                }

The offending code appears to be here: $stockAllocation = array_merge($userStockLocation, $stockAllocation); file: class-slw-order-item.php

$userStockLocation contains the user selected stock location, but then since we merge we also have $stockAllocation which has the other location. So the final $stockAllocation contains both locations, which results in trying to deduct from 2 locations.

Any idea what is going on here? When i change the line above to just be: $stockAllocation = $userStockLocation; it successfully deducts the correct stock from the single location.

Thanks