title: Webpack css-loader does not consider localIdentName
body: <p>I am using the css-loader as Webpack plugin to transform my css class name but the localIndentName option has no effect.</p>
  
  <p>Here's my webpack configuration concerning the css-loader:</p>
  
  <pre><code>{
      test: /(\.css|\.scss|\.sass)$/,
      use: [
        {
          loader: 'css-loader',
          options: {
            sourceMap: true,
            module: true,
            localIndentName:'[name]_[local]_[hash:base64:5]'
          }
        }
      ]
    }
  </code></pre>
  
  <p>The class of my html elements are being transformed to hash value only:</p>
  
  <pre><code>&lt;div class="_3FKNgBgNuQfnCln2xIoxoO"&gt;
     &lt;div class="_3qj_5lUx_x_cKsHgbKmTIq"&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I am using the following versions:</p>
  
  <ul>
  <li>node: 8.11.1</li>
  <li>npm: 6.0.1</li>
  <li>webpack: 4.8.3</li>
  <li>css-loader: 0.28.11</li>
  </ul>
  
  <p>Does someone know what I am doing wrong?</p>