title: How do I find out if a Branch was merged into the Trunk?
body: <p>I'm trying to clear up an svn tree. There's a trunk directory and a branches directory, containing a folder with the hopeless name "main-branch". I want to find out if it was already merged into the trunk.</p>
  
  <p>How can I do this?
  Is <code>svn mergeinfo</code> reliable, because it shows nothing?</p>