title: Maven "install site-deploy deploy" - does it run phases twice?
body: <p>Let's say I run Maven with</p>
  
  <pre><code>install site-deploy deploy
  </code></pre>
  
  <p>(The reason: I only want to deploy if both the artifact and the site can be built.)</p>
  
  <p>Will Maven run all the phases up to <code>install</code> <em>again</em> when I call <code>deploy</code>? Or is it smart enough to see that there has already been a successful <code>install</code> in the same Maven call?</p>
  
  <p>If not: What can I do to "tell" Maven to not repeat itself? Do I need to list the goals separately?</p>