title: Cannot use ProcessBatchData without increasing version of processed item
body: <p>I need to update SPListItem using web.ProcessBatchData without create new version.</p>
  
  <p>I've tried to use this xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; 
  &lt;ows:Batch OnError="Continue"&gt; 
    &lt;Method ID="1"&gt; 
      &lt;SetList&gt;{some-guid}&lt;/SetList&gt; 
      &lt;SetVar Name="Cmd"&gt;Save&lt;/SetVar&gt; 
      &lt;SetVar Name="ID"&gt;{list-item-id}&lt;/SetVar&gt; 
      &lt;SetVar Name="owshiddenversion"&gt;{current-item-version}&lt;/SetVar&gt; 
      &lt;SetVar Name="urn:schemas-microsoft-com:office:office#Title"&gt;some title&lt;/SetVar&gt; 
    &lt;/Method&gt; 
  &lt;/ows:Batch&gt;
  </code></pre>
  
  <p>After execution of BatchData on this xml i've received new version ({previous-version} + 1) even without changing any visible item fields.</p>
  
  <p>Is it possible to use ProcessBatchData in the same way as SystemUpdate(false)?</p>
  
  <p>P.S. I need to update List item. Previous mentioned xml works perfectly on updating DocumentLibrary items...</p>