message: copy arrays as arrays and not convert them to maps in new-composer.
diff: @@ -123,7 +123,12 @@ export class NewComposer extends Transformer<AnyObject, AnyObject> {
  break;
  default:
  + if (Array.isArray(value)) {
  + this.cloneInto(<AnyObject>this.getOrCreateArray(target, key, pointer), children);
  + } else {
  this.cloneInto(<AnyObject>this.getOrCreateObject(target, key, pointer), children);
  + }
  +
  break;
  }
  