Jakub Zacek

Rebased.

Well I know the Paper team generally don't like events, that can be replaced by other events, but I would say this is not the case. If I wanted to...

> If this should really include a toggle for the actions after the change then I feel like this should be a separate toggle (e.g. "triggerAdvements" or something along that...

Rebased and fixed remarks... Edit: thanks for the paste, noticed it after I committed, so hopefully it is fine this way... :D

Rebased

Rebased

AFAIK this PR does not allow mutation of the stacks, or does it? It is a while when I did it, but I still miss sine event in this matter...

And if I cloned it? I really need just the information, don't need to modify the item.

Rebased and changed it so both old and new stacks are copied.

> If this event is going to be a thing, which I’m not 100% sold on yet, it should be in `AbstractContainerMenu#triggerSlotListeners` so you can call it with the old...