--- a/net/minecraft/server/DataConverterMap.java +++ b/net/minecraft/server/DataConverterMap.java @@ -31,7 +31,7 @@ Typed<?> typed1 = typed.getOrCreateTyped(opticfinder1); Dynamic<?> dynamic1 = (Dynamic) typed1.get(DSL.remainderFinder()); - dynamic1 = dynamic1.set("map", dynamic1.createInt(dynamic.get("Damage").asInt(0))); + if (!dynamic1.getElement("map").isPresent()) dynamic1 = dynamic1.set("map", dynamic1.createInt(dynamic.get("Damage").asInt(0))); // CraftBukkit return typed.set(opticfinder1, typed1.set(DSL.remainderFinder(), dynamic1)); } else { return typed;