Donkey Dupe 1.16.2 Java

Before 1.16 there was the donkey duplication glitch where one player would look into a donkeys chest and then another player would sit on the donkey and then log out. The first player takes the items out and then the second would log in and take the duplicated items out of the donkey. You patched this for 1.16. The patch has been worked around so it is still a problem. The problem now is: One player puts an item in one spot of a donkeys chest and another player sits on the donkey, then at the same time player 1 takes the item out of the chest and the second player logs out. It doesnt work 100% of the time but it does duplicate the item. Please fix this issue