Map Duplication when crafting Map copies

Images included.

1. Obtain stack of maps to copy.
2. Obtain stack of blank maps.
3. Place both stacks in a crafting window/table
4. Observe that 65 maps will be produced in the crafting output window

Results:

1. Click 1 time to remove 65 maps from the crafting window.
2. Observe that 63 maps remain in the crafting window/table
3. Observe that 64 maps will be produced in the crafting output window.