Example with a custom handle - warning in the console

Hi, thank you for your awesome slider!

I want to implement a custom handler. As a base I've taken the following example:
https://github.com/react-component/slider/blob/master/examples/handle.jsx

When I try to run this simple example:

import Slider from "rc-slider";

...

const handle = (props) => <Slider.Handle {...props} />;

const App = () => (<Slider handle={handle} />);

Then I get the following warning in the console:

Let's try yourself here:
https://codesandbox.io/s/rc-slider-custom-handle-warning-col3f

The handle is causing the warning. And the fixedHandle does not.

Can you somehow fix this? Thank you very much.

Start with examples/handle.jsx and reproduce the warning using the linked CodeSandbox. Compare the custom handle with fixedHandle and trace the warning from the custom-handle entry point. Done means the custom handle example runs without the reported console warning while retaining its behavior.