slickGoTo doesn't scroll at index -2, -3, ...

If I use your own example at http://jsfiddle.net/k70vendr/ on issue https://github.com/kenwheeler/slick/issues/960 and extend the slidesToShowup to 5, there I can use slickGoTo with an data-slick-index of -2 and it will be fine. But if I use the current version 1.5.9 instead of 1.4.0 then the slider doesn’t move. Look at http://jsfiddle.net/4j6a1u22/. Go on “Item 1” and then click on “Item 6”.

Do I something wrong or truly a bug?

[janein]

fixed in this pull-request: #2285

[1v]

Temporary fix:

var index, slickObj;

index = -2;

slickObj = $('.wrapper').slick('getSlick');

if (index <= -2) {
  index += slickObj.slideCount;
}

slickObj.slickGoTo(index);