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    Bug 
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    Resolution: Invalid
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    None
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    Minecraft 1.10.2
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    None
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        Unconfirmed
I put 64 Cobblestone and 8 Coal in a furnace on a server. When I came back a while later to pick up my Stone, I found that only 63 had cooked, when I was certain that coal was meant to cook 8 items. I first shift-clicked the coal into the furnace, and then I shift-clicked the Cobblestone.