The only open report about witch noses!
To reproduce:
/summon witch ~ ~ ~ {HandItems:[{id:"stone",Count:1},{id:"dirt",Count:1}]}
Result: The stone and dirt do not render, but the witch's/witches/witche's/… nose is raised permanently, as if it tried to drink a potion.
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What? This bug is "important"? 🤔
This issue has been fixed in 19w44a.
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