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

Bug - regression

**What is the current behavior?**

In react 16 when creating a `<select size="3">` (size > 1) the first child <option> is automatically getting marked as selected. In React 16 there does not seem to be a way to specify no <option> gets selected by default

https://codesandbox.io/s/m76ozkwm89


**What is the expected behavior?**

In React 15 unless you marked an option to be selected <option selected> no options were selected by default.

https://codesandbox.io/s/6894m3k9w

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

Reproducible in Chrome 72 and Firefox 59.

**Note:** this is almost a duplicate of #12200. In fact, I copied issue text and codesandbox examples, just changing `multiple` to `size="3"`.
}
    ReactDOM.render(<App value="monkey" />, container);
    expect(node.options[0].selected).toBe(true); 
    expect(node.options[1].selected).toBe(false); 
    expect(node.options[2].selected).toBe(false); 
    ReactDOM.render(<App value="giraffe" />, container);
    expect(node.options[0].selected).toBe(false); 
    expect(node.options[1].selected).toBe(true); 
    expect(node.options[2].selected).toBe(false); 
  });
  it('should warn if value is null', () => {
    expect(() =>
      ReactTestUtils.renderIntoDocument(
        <select value={null}>
          <option value="test" />
        </select>,
      ),
    ).toWarnDev(
      '`value` prop on `select` should not be null. ' +
        'Consider using an empty string to clear the component or `undefined` ' +
        'for uncontrolled components.',
    );
    ReactTestUtils.renderIntoDocument(
      <select value={null}>
        <option value="test" />
      </select>,
    );
  });
  it('should warn if selected is set on <option>', () => {
    function App() {