title: Clearing or resetting a knockout validation validatedObservable?
body: <p>I have a view model as such:</p>
  
  <pre class="lang-js prettyprint-override"><code>var prop1 = ko.observable().extend{ required: true },
      prop2 = ko.observable().extend{ required: true };
  
  var validation = ko.validatedObservable([prop1, prop2]);
  
  function resetFields() {
      prop1(undefined);
      prop2(undefined);
  }
  
  var vm = {
      prop1: prop1,
      prop2: prop2,
      validation: validation,
      reset: resetFields
  };
  </code></pre>
  
  <p>The properties prop1 and prop2 are being validated correctly via the validatedObservable, however when I execute resetFields, these properties then have errors on them since they've been modified and are required.</p>
  
  <p>Is there a way to reset the validated observable, as if it had not been changed?</p>
  
  <p><strong>Update:</strong> I was sourcing knockout.validation from NuGet, and using v1.0.1</p>