title: SVN merge between two branches - "path not found"
body: <p>I've got two branches (children of trunk) that need to be merged into one branch for testing, but they can't go into trunk. Both branches are up-to-date with trunk@HEAD. So I want to go from this:</p>
  
  <pre><code>__________________trunk
    \___duck   \
                \___beaver
  </code></pre>
  
  <p>to this:</p>
  
  <pre><code>__________________________trunk
    \
     \______________platypus
  </code></pre>
  
  <p>I created the branch platypus from the latest version of trunk, and am trying to merge duck and beaver into this new copy of trunk: </p>
  
  <pre><code>svn copy ^/trunk ^/branches/platypus;
  svn switch ^/branches/platypus;
  svn merge --reintegrate ^/branches/duck;
  svn merge --reintegrate ^/branches/beaver;
  </code></pre>
  
  <p>but the merge ops fail</p>
  
  <pre><code>svn: '/blah/!svn/bc/12047/repo/branches/duck' path not found
  </code></pre>
  
  <p>If I try to --reintegrate duck (or beaver) into trunk it works fine. What am I missing here?</p>