MinMonth and MaxMonth aren't working with jQuery 3.6.0 and jQuery UI 1.12.0

[ianthedev]

In the official demo file, after I changed the versions of jQuery and jQuery UI to 3.6.0 and 1.12.0, respectively, the months and years which are outside the range set by MinMonth and MaxMonth can be selected.

[swuf]

If anyone is still interested, we have been able to fix this by changing two lines in the _decorateButtons method:
Original:
_setDisabled(this._prevButton, _minDate && _curYear == _toYear(_minDate));
_setDisabled(this._nextButton, _maxDate && _curYear == _toYear(_maxDate));

Fixed:
_setDisabled(this._prevButton, _minDate != null && _curYear == _toYear(_minDate));
_setDisabled(this._nextButton, _maxDate != null && _curYear == _toYear(_maxDate));