Hi,

I've spotted a bug when I use ui-grid-cellNav and try to add a new element to the data. This bug only happens when the new element is added on top of the grid, and when it's done, the class "ui-grid-cell-focus" doesn't move with its matching cell and thus highlights the wrong element.

Check this plnkr : http://plnkr.co/edit/MFywMvsLDRvK8PMq1I6m
It's already sorted by ID.

1. Select "Bender Jefferson" cell
2. Click Add row - it will duplicated the first entry
3. The class "ui-grid-cell-focus" remained on the same cell so its now highlighting the wrong element.
4. Click on "Get current focused cell" and check that thw row number doesn't match.