Traitor/mods/sabotage/lbm.lua

minetest.register_lbm({
   label = 'Sabotaged Node Reset',
   name = 'sabotage:node_fix',
   nodenames = {'group:sabotage'},
   run_at_every_load = true,
   action = function(pos, node)
      if minetest.get_item_group(node.name, 'sabotage') == 2 then
         local meta = minetest.get_meta(pos)
         local map_id = meta:get_string('map_id')
         local sabotaged = lobby.sabotage[map_id]
         if not sabotaged then
            local def = minetest.registered_nodes[node.name]
            local flip = def.sabotage_switch
            if flip then
               minetest.swap_node(pos, {name = flip, param2 = node.param2})
            end
         end
      end
   end
})