title: Override grouping if non-grouped column contains a certain value
body: <p>I'm grouping some data like this:</p>
  
  <pre><code>grouping:true,
  groupingView: {
      groupField: ["IntakeDate"],
      groupColumnShow: [true],
      groupText: [
          "{0} Records: {1}"
      ],
      groupOrder: ["desc"],
      groupSummary: [true],
      groupCollapse: true,
      groupDataSorted: true
  }
  </code></pre>
  
  <p>I'm wondering if it's possible to have the value of another column override the default collapse behavior. If any row in the group has a certain value in one of the other columns, then that group should not collapse.</p>
  
  <p><strong>Update</strong>
  Sorry, I forgot to mention that this is the free version of jqGrid 4.6.0</p>