title: Can't un-ignore a directory with TortoiseSVN
body: <p>I wanted to ignore the 'output' directory, so in the context-menu I chose <code>tortoiseSVN-&gt;unversion and add to ignore list</code>, which I later realized was not what I wanted, since I wanted that directory to continue to exist in the repository.</p>
  
  <p>I've looked at the Ignore property in the parent directory, and 'output' is not there, and recreating it and doing a 'commit' doesn't make it show up either.</p>
  
  <p>I even tried to make a placeholder file inside the directory and committing that, but TortoiseSVN barfs with a 'path not found' error.</p>