title: SVN merge reintegrate fails with error: (retrieval of mergeinfo unsupported)
body: <p>Using TortoiseSVN 1.6.16 and SVN server (svnserve) 1.6.11, when I try to 'Merge - Reintegrate a branch' I get this error:</p>
  
  <pre><code>SVN merge reintegrate fails with error: (retrieval of mergeinfo unsupported)
  </code></pre>
  
  <p>Recommendations elsewhere tell me that this message occurs when either the client or server is older than 1.5, but this does not help me.</p>