TypeScript definitions incorrectly inherit "ref" definition from FormControl

[benwiley4000]

FormControl is wrapped in forwardRef so its ref prop must handle a div element. However a ref prop passed to ChipInput would receive a component ref. Because ChipInput inherits FormControl's props definition and omits only onChange, TypeScript is misled about the definition of the ref prop.

I'm using a component ref in my code to call setState() from the parent component (yes I know this is bad, I'll open an issue shortly about the behavior I'm implementing 🙂).