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

**What is the current behavior?**
When an input field changes from "email" to "text", an exception TypeError will be thrown from setSelection.
![Screenshot](https://raw.githubusercontent.com/adrianimboden/react-bug-reproduction/master/screenshot.png)

**Reproduction**
See here: https://github.com/adrianimboden/react-bug-reproduction

**What is the expected behavior?**
It should not crash because of an uncaught exception

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**
master (https://github.com/facebook/react/commit/4ca7855ca062d5d7dfca83c86acf46731e1e57ef)
Firefox

This would be my proposed change to fix the issue: https://github.com/adrianimboden/react/commit/db923b8c3c1cb23ad9fb150c160ce56f39dd3cae
import Fixture from '../../Fixture';
import FixtureSet from '../../FixtureSet';
import TestCase from '../../TestCase';
import InputTestCase from './InputTestCase';
const React = window.React;
class TextInputFixtures extends React.Component {
  render() {
    return (
      <FixtureSet
        title="Inputs"
        description="Common behavior across controlled and uncontrolled inputs">
        <TestCase title="Numbers in a controlled text field with no handler">
          <TestCase.Steps>
            <li>Move the cursor to after "2" in the text field</li>