when I use the add item cheat menu, it sets raw material to 10, and restraints to 1, instead of adding to the original number (if i had 50 tape in my inventory, using the button sets it to 10 instead of the expected 60)

clicking "add keys and lockpicks" is fine, as clicking it adds to the amount you already have, "add all restraints" doesn't stack to restraints you already have but does add the restraints you don't have by 1, "add to inventory" just sets the requested item to 10, instead of adding ten to the amount you have, is this intentional?