title: How to clear file(s) selection from file input after the data has successfully be submitted?
body: <p>I am using react.js, I have a form, that I am submitting to an API and the form works fine up to the point where I want to clear the fields. Well actually one field in particular, the file input. I can't get it to reset back to "No File Selected", I've tried creating a files= attribute and controlling it through the state, and everything. Nothing is working, what am I missing? </p>
  
  <p>I only want to reset it when there has been a successful submission.</p>
  
  <p>What is the right approach to this.</p>
  
  <pre><code>&lt;input
      type="file"
      name="js-case-upload"
      className="form-control-static"
      filename={this.state.files}
      accept="image/*"
      onChange={ this._onChangeFileInput }
  /&gt;
  </code></pre>