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Type error when using custom HtmlInput component.

See original GitHub issue

What is the current behavior?

TypeScript error in /home/dema/tmp/rff-bug/src/App.tsx(36,23):
Type 'FunctionComponent<InputProps>' is not assignable to type '"input" | "select" | "textarea" | ComponentClass<FieldRenderProps<any, HTMLElement>, any> | FunctionComponent<FieldRenderProps<any, HTMLElement>> | undefined'.
  Type 'FunctionComponent<InputProps>' is not assignable to type 'FunctionComponent<FieldRenderProps<any, HTMLElement>>'.
    Types of property 'propTypes' are incompatible.
      Type 'WeakValidationMap<InputProps> | undefined' is not assignable to type 'WeakValidationMap<FieldRenderProps<any, HTMLElement>> | undefined'.
        Type 'WeakValidationMap<InputProps>' is not assignable to type 'WeakValidationMap<FieldRenderProps<any, HTMLElement>>'.
          Types of property 'input' are incompatible.
            Type 'Validator<FieldInputProps<string, HTMLInputElement>> | undefined' is not assignable to type 'Validator<FieldInputProps<any, HTMLElement>> | undefined'.
              Type 'Validator<FieldInputProps<string, HTMLInputElement>>' is not assignable to type 'Validator<FieldInputProps<any, HTMLElement>>'.
                Type 'FieldInputProps<string, HTMLInputElement>' is not assignable to type 'FieldInputProps<any, HTMLElement>'.  TS2322

    34 |     <div className="App">
    35 |       <Form onSubmit={() => { }} render={() => {
  > 36 |         return <Field component={Input} name="f"/>
       |                       ^
    37 |       }}/>
    38 |     </div>
    39 |   );

What is the expected behavior?

No type errors. This worked in 6.3.0.

Sandbox Link

https://github.com/Dema/rff-bug

Other information

I think the issue is with a limited type inference that bails out too early. Here https://github.com/final-form/react-final-form/blame/master/typescript/index.d.ts#L96 T extends HTMLElement = HTMLElement = HTMLElement default value forces typescript to give up on trying to infer real type that is HTMLInputElement