alias for moreores copper block

mods/external_legacy/init.lua

@@ -9,6 +9,7 @@ minetest.register_alias("moreores:gold_ingot", "default:gold_ingot")
 minetest.register_alias("moreores:mineral_copper", "default:stone_with_copper")
 minetest.register_alias("moreores:copper_lump", "default:copper_lump")
 minetest.register_alias("moreores:copper_ingot", "default:copper_ingot")
+minetest.register_alias("moreores:copper_block", "default:copperblock")
 minetest.register_alias("moreores:bronze_ingot", "default:bronze_ingot")
 minetest.register_alias("moreores:bronze_block", "default:bronzeblock")