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

This is a bug

**What is the current behavior?**

![screen shot 2016-07-03 at 4 12 19 pm](https://cloud.githubusercontent.com/assets/1697380/16544656/b3f896b2-4140-11e6-923a-06fc630c92df.png)
![screen shot 2016-07-03 at 4 11 15 pm](https://cloud.githubusercontent.com/assets/1697380/16544657/b3f8f292-4140-11e6-8b03-0ecaa3165460.png)

**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar (template: https://jsfiddle.net/reactjs/69z2wepo/).**

Using 15.2.0 react and react-dom

**What is the expected behavior?**

![screen shot 2016-07-03 at 4 13 05 pm](https://cloud.githubusercontent.com/assets/1697380/16544659/b938951e-4140-11e6-9275-2c3721542003.png)
![screen shot 2016-07-03 at 4 13 10 pm](https://cloud.githubusercontent.com/assets/1697380/16544660/b9391278-4140-11e6-9951-0f81024ce859.png)

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

In 15.2.0, extra attributes `name` and `value` with empty values are added to the submit button of a form.

It works in 15.1.0.

expect(aNode.checked).toBe(false);
    expect(bNode.checked).toBe(true);
    setUntrackedChecked.call(aNode, true);
    
    
    
    setUntrackedChecked.call(bNode, false);
    
    dispatchEventOnNode(aNode, 'click');
    
    expect(aNode.checked).toBe(false);
    expect(bNode.checked).toBe(true);
  });
  it('should warn with value and no onChange handler and readOnly specified', () => {
    ReactDOM.render(
      <input type="text" value="zoink" readOnly={true} />,
      container,
    );
    ReactDOM.unmountComponentAtNode(container);
    expect(() =>
      ReactDOM.render(
        <input type="text" value="zoink" readOnly={false} />,
        container,
      ),
    ).toWarnDev(
      'Warning: Failed prop type: You provided a `value` prop to a form ' +
        'field without an `onChange` handler. This will render a read-only ' +
        'field. If the field should be mutable use `defaultValue`. ' +
        'Otherwise, set either `onChange` or `readOnly`.\n' +
        '    in input (at **)',