Temporary fix for rjsf-team#349 and facebook/react#7630 radio widget bug (rjsf-team#423)

Author: maartenth

src/components/widgets/RadioWidget.js

@@ -13,6 +13,8 @@ function RadioWidget({
  // Generating a unique field name to identify this set of radio buttons
  const name = Math.random().toString();
  const {enumOptions, inline} = options;
+ // checked={checked} has been moved above name={name}, As mentioned in #349;
+ // this is a temporary fix for radio button rendering bug in React, facebook/react#7630.
  return (
  <div className="field-radio-group">{
  enumOptions.map((option, i) => {
@@ -21,9 +23,9 @@ function RadioWidget({
  const radio = (
  <span>
  <input type="radio"
+ checked={checked}
  name={name}
  value={option.value}
- checked={checked}
  disabled={disabled}
  autoFocus={autofocus && i === 0}
  onChange={_ => onChange(option.value)}/>