Changed all instances of new BukkitWorld to BukkitUtil.getLocalWorld, except for the one in that function.

src/main/java/com/sk89q/worldedit/bukkit/BukkitPlayer.java

@@ -51,7 +51,7 @@ public class BukkitPlayer extends LocalPlayer {
     @Override
     public WorldVector getPosition() {
         Location loc = player.getLocation();
-        return new WorldVector(new BukkitWorld(loc.getWorld()),
+        return new WorldVector(BukkitUtil.getLocalWorld(loc.getWorld()),
                 loc.getX(), loc.getY(), loc.getZ());
     }
 
@@ -123,7 +123,7 @@ public class BukkitPlayer extends LocalPlayer {
 
     @Override
     public LocalWorld getWorld() {
-        return new BukkitWorld(player.getWorld());
+        return BukkitUtil.getLocalWorld(player.getWorld());
     }
 
     @Override

src/main/java/com/sk89q/worldedit/bukkit/WorldEditPlugin.java

@@ -415,7 +415,7 @@ public class WorldEditPlugin extends JavaPlugin {
 
         LocalSession session = controller.getSession(wrapPlayer(player));
         RegionSelector sel = selection.getRegionSelector();
-        session.setRegionSelector(new BukkitWorld(player.getWorld()), sel);
+        session.setRegionSelector(BukkitUtil.getLocalWorld(player.getWorld()), sel);
         session.dispatchCUISelection(wrapPlayer(player));
     }
 }