fix: fix dupe airblock

airblock.lua

@@ -2,6 +2,7 @@ local S = minetest.get_translator("tech_additions")
 
 local placeairblock = function ()
 	return function(itemstack, user, pointed_thing)
+		if minetest.is_creative_enabled(user:get_player_name()) then
 			local pos = user:getpos()
 			local dir = user:get_look_dir()
 			local distancefromplayer = 3
@@ -20,6 +21,7 @@ local placeairblock = function ()
 			end
 		end
 	end
+end
 
 minetest.register_node("tech_additions:air_block", {
     description = S("Air Block"),