Wandering Trader can remain holding milk or potion upon relog

If you leave the world when wandering trader is drinking an invisibility potion or milk it will remain in its hands

Reproduce

• Set it to night
• Spawn a wandering trader
• Wait for it to drink the potion the first time
• When it starts to drink a second time quit and relog
  Notice it is still holding the potion

Expected Result

It would finish drinking and stop holding the potion