I haven't really tested this in the latest 1.9 snapshots but I can confirm this is happening in 1.8.8. Me personally cannot reproduce this bug but my friend is able to do so on command. He just disconnects and log in again and everytime it works.
When this is happening he's able to kill his own ghost entity/player and thereby duplicate the items, truly game-breaking in my opinion.
I haven't really tested this in the latest 1.9 snapshots but I can confirm this is happening in 1.8.8. Me personally cannot reproduce this bug but my friend is able to do so on command. He just disconnects and log in again and everytime it works.
When this is happening he's able to kill his own ghost entity/player and thereby duplicate the items, truly game-breaking in my opinion.