title: Grid: How to prevent row deselection on hit Enter?
body: <p>My grid uses <code>CheckboxModel</code> and <code>CellEditing</code> plugin. When the user types something in a field and hits <code>Enter</code> button, then I see that checkmark disappears from the first ckeckbox column. But at the same time <code>getSelectionModel().getSelection()</code> shows, that one row is still selected. This behaviour is quite weird and may confuse ordinary users. So, I need some workaround.</p>
  
  <p>Here is a picture of what is going on. Before: </p>
  
  <p><img src="https://i.stack.imgur.com/DXTsp.png" alt="enter image description here"></p>
  
  <p>After: </p>
  
  <p><img src="https://i.stack.imgur.com/gF27z.png" alt="enter image description here"></p>
  
  <p>As you can see, there is no longer checkmark in the first column and no selected records, but <code>getSelection()</code> still shows one record being selected. </p>