defaultSorted by two columns is not work

[akparaliev]

   const defaultSorted = [
      {
        dataField:  #'field1',
        order: 'asc'
      },
      {
        dataField: 'field2',
        order: 'asc'
      }];

the 'field2' column is not ordered #

[AllenFang]

@akparaliev I think you used in a wrong way, please check document

here is an online demo