In my render method I have something like

```
<input type={dynamicTypeValue} value={dynamicValue} />
```

If I first render this input as a number, (e.g. `dynamicTypeValue = 'number'; dynamicValue = 5`) but then change the input to a string: (`dynamicTypeValue = 'string'; dynamicValue = '01/01/2016'`) I get a warning 
that the new value is not a valid number:

```
The specified value "01/01/2000" is not a valid number. The value must match to the following regular expression: -?(\d+|\d+\.\d+|\.\d+)([eE][-+]?\d+)?
DOMPropertyOperations.js:142 The specified value "01/01/2012" is not a valid number. The value must match to the following regular expression: -?(\d+|\d+\.\d+|\.\d+)([eE][-+]?\d+)?
```

![screen shot 2016-04-07 at 6 07 45 pm](https://cloud.githubusercontent.com/assets/1074773/14368429/a7d61baa-fceb-11e5-91f0-199ff95aa276.png)

Is this expected behavior?

var stub = <input type="text" value="yolo" onChange={emptyFunction} />;
    var node = ReactDOM.render(stub, container);
    expect(node.value).toBe('yolo');
    stub = ReactDOM.render(
      <input type="text" value={false} onChange={emptyFunction} />,
      container
    );
    expect(node.value).toEqual('false');
  });
  it('should allow setting `value` to `objToString`', function() {
    var container = document.createElement('div');
    var stub = <input type="text" value="foo" onChange={emptyFunction} />;
    var node = ReactDOM.render(stub, container);
    expect(node.value).toBe('foo');
    var objToString = {
      toString: function() {
        return 'foobar';
      },
    };
    stub = ReactDOM.render(
      <input type="text" value={objToString} onChange={emptyFunction} />,
      container
    );
    expect(node.value).toEqual('foobar');
  });
  it('should not incur unnecessary DOM mutations', function() {
    var container = document.createElement('div');
    ReactDOM.render(<input value="a" />, container);
    var node = container.firstChild;
    var nodeValue = 'a';