Bootstrap multiple tabs conflict

HTML

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<div>

  <ul class="nav nav-tabs" role="tablist">
    <li role="presentation" class="active"><a href="#foo" role="tab" data-toggle="tab">Foo</a></li>
    <li role="presentation"><a href="#bar" role="tab" data-toggle="tab">Bar</a></li>
  </ul>

  <div class="tab-content">
    <div role="tabpanel" class="tab-pane active" id="foo">Foo content 1</div>
    <div role="tabpanel" class="tab-pane" id="bar">Bar content 1</div>
  </div>

</div>

<div>

  <ul class="nav nav-tabs" role="tablist">
    <li role="presentation" class="active"><a href="#foo" role="tab" data-toggle="tab">Foo</a></li>
    <li role="presentation"><a href="#bar" role="tab" data-toggle="tab">Bar</a></li>
  </ul>

  <div class="tab-content">
    <div role="tabpanel" class="tab-pane active" id="foo">Foo content 2</div>
    <div role="tabpanel" class="tab-pane" id="bar">Bar content 2</div>
  </div>

</div>