title: svn: how to ignore folder except two files
body: <p>How to ignore all subfolders of <code>submissions</code> except <code>one_file</code>?</p>
  
  <pre><code>submissions/
    vt1/
    vt2/
    vt3/
    one_file
  </code></pre>
  
  <p><code>one_file</code> is already in the repo, <code>vt</code> folders are <em>not</em> in the repo.</p>
  
  <p>(I was trying all below when outside of the folder <code>submissions</code>)</p>
  
  <p>I tried <code>svn propedit svn:ignore .</code> with the subsequent <code>submissions/vt*</code>.
   Then did commit, just in case. This still shows all those vt folders when I call <code>svn status</code> (with <code>?</code> mark on them).</p>
  
  <p>Then I tried the same propedit command but put there <code>submissions</code>. The same result. I also tried <code>submissions/*</code> and <code>./submissions/*</code>.</p>
  
  <p>Then I tried to add just one of those vt folders (thus not using pattern <code>*</code>). It <em>still</em> shows that subfolder! Things become interesting...</p>
  
  <p>I exhausted all my "logical" ways. Do you know how to do this?</p>