Fix "block update packet" not being sent to the correct world. Fixes BUKKIT-2023

src/main/java/net/minecraft/server/WorldServer.java

@@ -782,7 +782,8 @@ public class WorldServer extends World implements org.bukkit.BlockChangeDelegate
                 NoteBlockData noteblockdata = (NoteBlockData) iterator.next();
 
                 if (this.a(noteblockdata)) {
-                    this.server.getServerConfigurationManager().sendPacketNearby((double) noteblockdata.a(), (double) noteblockdata.b(), (double) noteblockdata.c(), 64.0D, this.worldProvider.dimension, new Packet54PlayNoteBlock(noteblockdata.a(), noteblockdata.b(), noteblockdata.c(), noteblockdata.f(), noteblockdata.d(), noteblockdata.e()));
+                    // CraftBukkit - this.worldProvider.dimension -> this.dimension
+                    this.server.getServerConfigurationManager().sendPacketNearby((double) noteblockdata.a(), (double) noteblockdata.b(), (double) noteblockdata.c(), 64.0D, this.dimension, new Packet54PlayNoteBlock(noteblockdata.a(), noteblockdata.b(), noteblockdata.c(), noteblockdata.f(), noteblockdata.d(), noteblockdata.e()));
                 }
             }