bug(sort): fix no sorting not returning new instance
bug(sort): fix no sorting not returning new instance

swimlane/angular2-data-table,swimlane/angular2-data-table,achimha/ngx-datatable,swimlane/ngx-datatable,achimha/ngx-datatable,swimlane/angular2-data-table,swimlane/ngx-datatable,swimlane/ngx-datatable,achimha/ngx-datatable