Multi-block query slice does not include block data: Block().data attribute is always set to 0

[thelabcat]

As stated in the title, using World().blocks[Vector(a, b, c)] returns a block with its proper data value, but World().blocks[Vector(a, b, c):Vector(d, e, f)] returns a list of blocks with the data value inevitably set to 0, regardless of the block's actual data value in Minecraft.

[thelabcat]

#23 fixes this for Raspberry Jam.