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

];
      break;
    case 'video':
    case 'audio':
      inst._wrapperState.listeners = [];
      
      for (var event in mediaEvents) {
        if (mediaEvents.hasOwnProperty(event)) {
          inst._wrapperState.listeners.push(
            ReactBrowserEventEmitter.trapBubbledEvent(
              EventConstants.topLevelTypes[event],
              mediaEvents[event],
              node
            )
          );
        }
      }
      break;
    case 'img':
      inst._wrapperState.listeners = [
        ReactBrowserEventEmitter.trapBubbledEvent(
          EventConstants.topLevelTypes.topError,
          'error',
          node
        ),
        ReactBrowserEventEmitter.trapBubbledEvent(
          EventConstants.topLevelTypes.topLoad,
          'load',
          node
        ),