React 0.14.7: `<option value="">empty</option>` emits empty string on change
http://jsbin.com/pisita/10/edit?html,js,console,output
React 15.0.0-rc.1`<option value="">empty</option>` emits string with value "empty" on change
http://jsbin.com/bemaze/12/edit?html,js,console,output
This is because React 15.0.0-rc.1 cuts off `value=""` from option tag

ReactDOMSelect.postUpdateWrapper(this);
}
var omittedCloseTags = {
  'area': true,
  'base': true,
  'br': true,
  'col': true,
  'embed': true,
  'hr': true,
  'img': true,
  'input': true,
  'keygen': true,
  'link': true,
  'meta': true,
  'param': true,
  'source': true,
  'track': true,
  'wbr': true,
  
};
var newlineEatingTags = {
  'listing': true,
  'pre': true,
  'textarea': true,
};
var voidElementTags = Object.assign({