When holding shift to craft multiple items, original item is not used up, allowing for infinite duplication (survival mode)
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We're tracking this issue in MC-271398, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as Fixed. Please check the Fix Version/s field in that ticket to see in which version this behavior was or will be fixed.
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This duplicatesΒ MC-271398, which is already reported as 'Fixed' in a future version.