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**Do you want to request a *feature* or report a *bug*?**

Bug.

**What is the current behavior?**

Creating an `<input type='submit'` with `value={undefined}` results in a button with no text. https://codesandbox.io/s/nn7p94y3rl

The same behaviour can be seen with `type='reset'`

I have a PR open with a proposed fix. https://github.com/facebook/react/pull/12780

**What is the expected behavior?**

The input should use the browser's default value for the input (Submit for en, etc.).

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

React 16.3.2. Chrome 66.0.3359.139. macOS 10.13.4. Works in React 15 (unsure of earlier versions)

setUntrackedValue = Object.getOwnPropertyDescriptor(
      HTMLInputElement.prototype,
      'value',
    ).set;
    setUntrackedChecked = Object.getOwnPropertyDescriptor(
      HTMLInputElement.prototype,
      'checked',
    ).set;
    React = require('react');
    ReactDOM = require('react-dom');
    ReactDOMServer = require('react-dom/server');
    container = document.createElement('div');
    document.body.appendChild(container);
  });
  afterEach(() => {
    document.body.removeChild(container);
  });
  it('should warn for controlled value of 0 with missing onChange', () => {
    expect(() => {
      ReactDOM.render(<input type="text" value={0} />, container);
    }).toWarnDev(
      'Failed prop type: You provided a `value` prop to a form field without an `onChange` handler.',
    );
  });
  it('should warn for controlled value of "" with missing onChange', () => {
    expect(() => {
      ReactDOM.render(<input type="text" value="" />, container);
    }).toWarnDev(
      'Failed prop type: You provided a `value` prop to a form field without an `onChange` handler.',
    );