title: editRow not working after setCell in jqGrid
body: <p>I'm using setCell to set the value of a cell , and after that enabling the cell for editing  </p>
  
  <pre><code>grid.jqGrid('setCell','1','Valid','5');
  grid.jqGrid('editRow','1', false);
  </code></pre>
  
  <p>but the result ist i cant click any longer on the cell ?</p>
  
  <p><img src="https://i.stack.imgur.com/FpSfT.jpg" alt="no longer editeble"></p>
  
  <p>after calling serCell the cell cant by any longer editable.</p>
  
  <p>How can i make this cell again editable ?</p>
  
  <p>Thanks</p>