Range on the calendar does not depend on input date fields (DateRangesWidget)

[evilchewits]

When I enter (or change) the dates using standard s, and then click 'ok' button, the correct range is shown on "date-range-field" (and I can work with true dates using $('.pickerContainer.widget').data("DateRangesWidget").options.values), but selected range on the calendar is wrong and the values on these s set in accordance with the calendar.