jgxGrid updaterow with array does not update the grid when filter is applied

[Svetoslavb04]

Describe the bug When you use updaterow() with an array and after that apply any filter to any column. The next time you try to update the grid an update won't happen. The updaterow() with an array won't work. If you update only one row it will work.

To Reproduce Steps to reproduce the behaviour:

1. Go to http://jsfiddle.net/sLokzjq4/
2. Click on the button to update. (It will update the grid)
3. Filter any column
4. Click on the button to update. (It won't update the grid)
5. See an error

Expected behaviour Every time you click the update button the grid should be updated