title: How can I get a specific version of a dataset row?
body: <p>using a dataset,each row has a method called hasVersion() which implies to me it keeps a copy of the original and current versions of that row. How can I get one of the original row values? </p>
  
  <p>I'd imagine it's possible to call reject changes on that row and then check the value, but I'd rather not lose the changes, just read the value(s).</p>