Magic Lamp or Charm + Out to Lunch possible?

[Sabin]

Originally Posted by tremorlaine

At that point the owner of the combat determines in which order the cards get discarded.

I was under the impression that the person whose turn it is will decide the order of discards? For example, Player A draws a monster, Player B uses Transferal Potion, an at the end of that combat, Player A would still choose the order of the discards?