title: Slickgrid losing focus on row click
body: <p>When using the cell selection model and checkboxselectcolum plugin, I am running into an issue with slickgrid.<br>
  When clicking on a cell, the focus is getting lost on the grid. I noticed the focus is lost after the invalidateRow statement in slick. <code>Chebxcolumn.js</code> file. </p>
  
  <p>Is there any workaround or fix for this?</p>