jQuery stores the current content of a field whenever it gets the focus. Since the fixed function is also called for KeyUp events the change event is not triggered anymore when the input looses focus.
(cherry picked from commit
39cf7d5bb4f9dfe1ada5dc2499f5c91e536ec96b)
inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
'Class']('ui-datepicker-rtl');
if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
- inst.input.is(':visible') && !inst.input.is(':disabled'))
+ // #6694 - don't focus the input if it's already focused
+ // this breaks the change event in IE
+ inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
inst.input.focus();
// deffered render of the years select (to avoid flashes on Firefox)
if( inst.yearshtml ){