**Do you want to request a _feature_ or report a _bug_?**

Bug

**What is the current behavior?**

When there are two lists of radio buttons and they are conditionally shown the correct radio button isn't always checked. In the [provided JSFiddle](https://jsfiddle.net/atimmer/krphcc8e/3/) I have created two lists and put a button before them to toggle between the two lists. You can see when switching to the second list of radio buttons none of the radio buttons is checked even though the second one should be checked based on the state.

**What is the expected behavior?**

The correct radio button should be checked. The following JSFiddle shows the behaviour with React 15.3.0 where it still worked: https://jsfiddle.net/atimmer/Lzjs56sn/1/.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

✅ React 15.3.0: It works.
❌ React 15.3.1: It is broken.

import FixtureSet from '../../FixtureSet';
import TestCase from '../../TestCase';
import RangeKeyboardFixture from './RangeKeyboardFixture';
import RadioClickFixture from './RadioClickFixture';
import RadioGroupFixture from './RadioGroupFixture';
import InputPlaceholderFixture from './InputPlaceholderFixture';
const React = window.React;
class InputChangeEvents extends React.Component {
  render() {
    return (
      <FixtureSet
        title="Input change events"
        description="Tests proper behavior of the onChange event for inputs">
        <TestCase
          title="Range keyboard changes"
          description={`
            Range inputs should fire onChange events for keyboard events
          `}>
          <TestCase.Steps>
            <li>Focus range input</li>
            <li>change value via the keyboard arrow keys</li>
          </TestCase.Steps>
          <TestCase.ExpectedResult>
            The <code>onKeyDown</code> call count should be equal to the{' '}
            <code>onChange</code> call count.