title: Can OSGi fragments have other fragments as hosts?
body: <p>Is this legal?</p>
  
  <p>MANIFEST.MF for <code>org.fragment1</code> (<code>org.host</code> is a normal bundle, not a fragment):</p>
  
  <pre><code>Bundle-SymbolicName: org.fragment1
  Fragment-Host: org.host
  </code></pre>
  
  <p>MANIFEST.MF for <code>org.fragment2</code>:</p>
  
  <pre><code>Bundle-SymbolicName: org.fragment2
  Fragment-Host: org.fragment1
  </code></pre>
  
  <p>Or should <code>org.fragment2</code> instead have</p>
  
  <pre><code>Fragment-Host: org.host
  </code></pre>
  
  <p>?</p>