Hello,

After updating to React 15.0.1, we are getting the following error:

```
Uncaught TypeError: Cannot read property 'addEventListener' of null
```

![image](https://cloud.githubusercontent.com/assets/4996164/14602577/5bb4e9f2-0571-11e6-9aa1-98de49f50d76.png)

transaction,
      nativeParent,
      nativeContainerInfo,
      this._processChildContext(context)
    );
    if (__DEV__) {
      if (this._debugID !== 0) {
        ReactInstrumentation.debugTool.onSetChildren(
          this._debugID,
          this._renderedComponent._debugID !== 0 ?
            [this._renderedComponent._debugID] :
            []
        );
      }
    }
    return markup;
  },
  getNativeNode: function() {
    return ReactReconciler.getNativeNode(this._renderedComponent);
  },
  /**
   * Releases any resources allocated by `mountComponent`.
   *
   * @final
   * @internal
   */
  unmountComponent: function(safely) {
    if (!this._renderedComponent) {
      return;
    }