draggable rows does not work in conjunction with cellNav

[jasonaibrahim]

I found this issue when I had both cellNav and draggableRows turned on for my grid. The only way I found them both to work together is if cell editing is on, and you dbl click or focus on a cell to make it active for editing - when a cell is in that state the row is draggable.

Here is an example on jsbin that shows the issue: https://jsbin.com/nomixu/2/edit?html,js,output