[BUG] Shift clicking stack into machine doesn't start recipe

[Rover656]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

If you shift click items into a stack that doesn't quite reach the input requirements for a recipe in the alloy smelter, the updated stacks will not cause the smelting to start.

Expected Behavior

No response

Steps To Reproduce

No response

Environment

No response

Anything else?

No response

[jollycar]

example: nethercotta

[ChikyuKido]

Hello,
The error seems to be in the MachineMenu class in the moveItemStackTo method. The only thing I could quickly observe is that if an item is already inside, the item stack of the slot is increased, and then slot.setChanged(); is called. However, if there is no item inside, slot1.set(item); is called. The slot1.set() invokes the following method:

public void set(ItemStack stack) {
this.container.setItem(this.slot, stack);
this.setChanged();
}

It appears that "this.container.setItem(this.slot, stack)" updates the machine and then checks if there is an available recipe. That's why I made this commit here: c551606. Instead of using setChanged();, I simply use set(itemstack). This calls the update method and it works. Without delving further into the codebase to find a better solution, this is what I have for now. I hope this is suitable. If yes, the PR is ready.