When using paper to increase the size of a map through a crafting table, the paper is consumed, but the map area remains unchanged.
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This is a serious issue. The map crafting doesn't work in [tested] version 1.9.x. It does work when just click dragging the map.
This happened to me in 14w06b. In the output cell it says it's the same scale, but when I Shift-click, it gives me the correct scale.