When putting a piece in a already filled location then undo is broken

[roessum]

If a user puts a piece in a location where the user has already put a piece, then the prevState is updated and that is a problem, because it goes back to that state.

[nimrossum]

Can you elaborate? Maybe add some screenshots or a short video / gif?

[nimrossum]

@Interrobangs Why was this closed?