Consuming from a container decrements inventory items first

If you open a container that has a stack of say kwama eggs in it and you have a stack of kwama eggs already in your inventory, dragging the stack from the container onto the paper doll consumes eggs from your inventory before consuming them from the stack you're dragging.

It's a bit odd to not see the number in the corner of the stack change as you eat stuff. More so if the other stack is scrolled out of view.

Doesn't (noticeably) happen in Morrowind.exe because stacks don't stick to your cursor there. (When you drop the first egg, one gets eaten and the rest merge into an inventory stack you have to pick up again if you want to eat more.)