message: We have incorrect default rows for matrix dropdown in react
diff: @@ -193,7 +193,7 @@ Serializer.addClass(
  QuestionFactory.Instance.registerQuestion("matrixdropdown", (name) => {
  var q = new QuestionMatrixDropdownModel(name);
  q.choices = [1, 2, 3, 4, 5];
  - q.rows = QuestionFactory.DefaultColums;
  + q.rows = QuestionFactory.DefaultRows;
  QuestionMatrixDropdownModelBase.addDefaultColumns(q);
  return q;
  });
  