<!--
  Note: if the issue is about documentation or the website, please file it at:
  https://github.com/reactjs/reactjs.org/issues/new
-->

**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"`.
if (didWarnInvalidHydration) {
      return;
    }
    const normalizedClientText = normalizeMarkupForTextOrAttribute(clientText);
    const normalizedServerText = normalizeMarkupForTextOrAttribute(serverText);
    if (normalizedServerText === normalizedClientText) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack(
      false,
      'Text content did not match. Server: "%s" Client: "%s"',
      normalizedServerText,
      normalizedClientText,
    );
  };
  warnForPropDifference = function(
    propName: string,
    serverValue: mixed,
    clientValue: mixed,
  ) {
    if (didWarnInvalidHydration) {
      return;
    }
    const normalizedClientValue = normalizeMarkupForTextOrAttribute(
      clientValue,
    );
    const normalizedServerValue = normalizeMarkupForTextOrAttribute(
      serverValue,
    );