fix use node.on_punch when node have pointed_thing (bug book guide and warps cristal)
fix use node.on_punch when node have pointed_thing (bug book guide and warps cristal)

MinetestForFun/minetest-minetestforfun-server,Ombridride/minetest-minetestforfun-server,MinetestForFun/server-minetestforfun,crabman77/minetest-minetestforfun-server,Gael-de-Sailly/minetest-minetestforfun-server,Ombridride/minetest-minetestforfun-server,sys4-fr/server-minetestforfun,sys4-fr/server-minetestforfun,Gael-de-Sailly/minetest-minetestforfun-server,sys4-fr/server-minetestforfun,MinetestForFun/minetest-minetestforfun-server,LeMagnesium/minetest-minetestforfun-server,LeMagnesium/minetest-minetestforfun-server,LeMagnesium/minetest-minetestforfun-server,MinetestForFun/server-minetestforfun,MinetestForFun/server-minetestforfun,MinetestForFun/minetest-minetestforfun-server,Gael-de-Sailly/minetest-minetestforfun-server,crabman77/minetest-minetestforfun-server,Ombridride/minetest-minetestforfun-server,crabman77/minetest-minetestforfun-server