when taking milk from the cow with bucket. the bucket disappears. and you are no longer able to get bucket back anymore. (im not sure does it effect, that if buckets are in stack, while right clicking the cow.)

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*What I expected to happen was...: the bucket disappers when right clicking the cow. i lost 1 bucket every time when right clicking the cow. (but its random when it happens, sometimes everything goes fine.!!!!!!!. and the cow was behind fence. and i was on the other side.
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What actually happened was...:
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Steps to Reproduce:
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