Expected behavior If i want to send a different value for selected date, i only have to specify a formatSubmit syntax and eventually prefix and suffix

Actual behavior From version 4.17 this does not happen anymore Resources (screenshots, code snippets etc.) The following code was working in 4.16 and still works in 4.17

$('.datepicker').pickadate({
  format: 'dd / mm / yyyy',
  formatSubmit: 'yyyy/mm/dd',
  hiddenPrefix: '',
  hiddenSuffix: '_date'
});

Using the syntax for the new datepicker format

    $('.datepicker').datepicker({
  format: 'dd / mm / yyyy',
  formatSubmit: 'yyyy/mm/dd',
  hiddenPrefix: '',
  hiddenSuffix: '_date'
});

the browser only send the original name, not the one with prefix and suffix