[MC-59176] replaceitem froze

Well when spamming the /replaceitem command (on a hat) and dropped that item (hat), it doesn't give it anymore.

Used this command with redstoneclock:

/replaceitem entity @e[team=playertwo] slot.armor.head leather_helmet 1 0 {display:{color:511},AttributeModifiers:[{operation:0,UUIDLeast:1,UUIDMost:1,Amount:-14,AttributeName:generic.maxHealth,Name:Zhead}],Unbreakable:1}