fix: don't attempt to write structure void blocks in minecraft structure
Overview
Fixes #3090
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Like I said on Discord, I wonder if it's an idea to add a switch to allow/disallow structure void to be pasted - I can see it being useful to know where they are
By default, Structure Void blocks should be pasted because they are simply part of the structure / schematic, I think.
In vanilla, structure_void is like the //paste command flag “-a” from FAWE, but “-a” affects air and structure_void would remain. So the vanilla behavior is exactly the opposite of the FAWE behavior when using "-a".
Maybe a paste command flag for FAWE would be an idea, which would paste AIR like in Vanilla and leave out structure_void blocks. Anything else would perhaps be unusual.
Just ran into this issue saving Minecraft structure schematics for my plugin, would appreciate this getting merged!