Handle of range sliders get stuck when set to maximum value

Hi,

I encountered the problem with a slider which has two handle, while setting its values to the maximum. It happens when both values are set at the same time, or when I set the value one by one with the handle [0] first. And strangely, if you set the handle [1] first, then it works perfectly fine. Please look at this fiddle: https://jsfiddle.net/u7Lmokt0/