title: SVN externals repo "is already locked" on update
body: <p>Basically I have to repo on the same server:</p>
  
  <pre><code>svn://repo/foo
  -&gt; checked out to d:\foo
  
  svn://repo/bar
  -&gt; d:\foo has an svn:external property set to check this out into d:\foo\bar
  </code></pre>
  
  <p>When an "svn:update" or a new "svn:checkout" this is gist of the error:</p>
  
  <pre><code>Command - Update
  Updated - D:\foo
  External - D:\foo\bar
  External failed - D:\foo\bar
  Error - d:\foo\bar is already locked via d:\foo
  </code></pre>
  
  <p>After I "clean" or manually release the lock, the problem still persists.</p>
  
  <p>Any insights would be greatly appreciated. Thanks!</p>
  
  <p><strong>Update:</strong></p>
  
  <p>Attila nailed it in the comment. I had "foo/bar" existing in the repository.</p>
  
  <p>For future reference - when using SVN:External property, SVN <strong>will create</strong> the destination folder for the external reference.</p>