Range: Clicking on marks label will not update the slider

Clicking on the mark labels of a range slider will not update the slider.

Steps to reproduce:

1. got to the http://react-component.github.io/slider/examples/marks.html
2. find the Range with marks or Range with marks and steps sliders
3. click on any label

Expected:

The slider should be updated, the nearest (or last changed) handler should jump on the above the label.

Result:

The slider is not updated, the handlers are not moved at all.

The problem as I can see is that the value passed from onClickMarkLabel is totally ignored and the bounds are not recalculated, so the onChange handler will be fired with previous bounds.

Start by tracing the Range mark-label click path through onClickMarkLabel and inspect how its value and bounds are passed to onChange. Reproduce the issue in the Range with marks and Range with marks and steps examples at the linked examples page. Done means clicking a mark label moves the appropriate handle and emits updated bounds.