I manage to reproduce 5 times, but now im think i get some error or something like that because i cant connect anymore.
EDIT: I manage to play again and the duplicated itens are still there, the server do not recognize that the itens are duplicated.
Person 1 : have things
Person 2 : have none
Person 1 dies and do not respawn (the bodie lies on ground)
Person 2 pick the itens he want
Person 1 click on exit button and relog
Person 1 relog with all itens back
Person 2 stay with the itens he pick up