does the vertical scroll is not working properly?

[paulocheque]

Navbar:

  <div class="navbar navbar-inverse navbar-default navbar-fixed-top">
    <div class="container">
      <div class="navbar-header">
        <button type="button" class="navbar-toggle toggle-left hidden-md hidden-lg" data-toggle="sidebar" data-target=".sidebar-left">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>

        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-responsive-collapse">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>

        <a class="navbar-brand" href="/">test</a>
      </div>

      <div class="navbar-collapse collapse navbar-responsive-collapse">

Sidebar:

<div class="container-fluid">
  <div class="row">
    <div class="col-xs-7 col-sm-3 col-md-2 sidebar sidebar-left sidebar-animate sidebar-md-show">
      <ul class="nav navbar-stacked">
        <li>

Steps to reproduce:

1. Browser with fullsize + Sidebar with lots of components (to force a vertical scroll)
2. Decrease the width of the browser until the toggle button appears
3. The vertical scroll of the sidebar stop working