Brewing stands' input slots do not have normal stacking behavior

The input slots (fuel, ingredient) of a brewing stands behave unlike all other slots, in the following ways:

• Right-clicking on a stack of items generally splits it in half; but on the input slots of brewing stands, it picks up the entire stack instead. The client still assumes only half a stack was picked up.

• If I have some of an item in the stand and some in my inventory, shift-clicking the stack in my inventory does not add it to ingredient slot in the brewing stand

Using the new double-click to pick up a stack inventory feature can have some unexpected results. To reproduce:

1. Put a stack of nether wart in the input of a brewing stand.
2. Have a single nether wart in your inventory.
3. Double click the single nether wart. Notice you now have 64 nether wart, even though 65 total have dissapeared from the stand and your inventory.

Neither of these behaviors occur with other specialized input slots, such as a furnace's fuel slot.

Also note other related inventory management issues relating to brewing stands listed in the "relates to" links below.