TL;DR
Quantity on fast transfer should not change back to full stack.What ?
I have 40 turrets and 1000 clips. I want to insert 25 clips to each. So, I split 200 clips to 2x100, then 100 to 2x50, then 50 to 2x25. I try to insert 25 pieces to the 1st turret with ctrl. 25 clips are transfered, but I have 200 clips under cursor, and clips stacks in my inventory are merged.I expect, that after I insert first stack of 25 clips, next 25 pieces are taken from inventory "to the cursor" and goes to 2nd turret, and so on...