title: Clear location state after navigating to some path
body: <p>I am using react-router <code>browserHistory</code> to navigate to path.</p>
  
  <pre><code>browserHistory.push({
    pathname: '/mycomponent',
    state: { someValue: 'value'},
  });
  </code></pre>
  
  <p>So this will navigate to mycomponent. As soon as i reach to mycomponent i want to clear key <code>someValue</code>. so that when i refresh the page it won't contain that value.</p>
  
  <pre><code>export class myComponent extends component {
    componentWillMount() {
      const value = this.props.location.state.someValue;
      // clear state.someValue from history
    }
  }
  </code></pre>
  
  <p>Any help would be appreciated.</p>