Range Slider Step with a Float Issue

[mshvarts]

Slider Range doesn't work if I have a float step.

It broke my code, I had to step to set step to 1 or use a workaround and initialize the slider with slider( step: 0.5 ) myself to fix it.

I tried to find the bug in the code and saw parseFloat("0.5", 10) being used

 function getSafeFloat(value, defaultValue) {
      var parsedValue = parseFloat(value, 10);
      return isNaN(parsedValue) ? defaultValue : parsedValue;
    }

parseFloat should only accept one argument, but it should still work because it should ignore the second parameter, so maybe the problem is somewhere else?