title: Android App Bundle build Error: <fusing> element is missing the 'include' attribute
body: <p>I am trying to develop an android app with dynamic features.</p>
  
  <p>I have added "sample" dynamic feature module to project and when i tried to build "Android App Bundle" from Android Studio, i am getting below error,</p>
  
  <pre><code>Caused by: java.util.concurrent.ExecutionException: com.android.tools.build.bundletool.exceptions.manifest.ManifestFusingException$FusingMissingIncludeAttribute: &lt;fusing&gt; element is missing the 'include' attribute (split: 'sample').
  </code></pre>
  
  <p>Dynamic feature module manifest</p>
  
  <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:dist="http://schemas.android.com/apk/distribution"
  package="com.features.dynamic.sample"&gt;
  &lt;dist:module
      dist:instant="false"
      dist:onDemand="true"
      dist:title="@string/title_sample"&gt;
      &lt;dist:fusing include="false" /&gt;
  &lt;/dist:module&gt;
  &lt;/manifest&gt;
  </code></pre>