Keyboard mixin does not reset _focusedNode when the target is not active

[ghost]

In the Keyboard mixin the removeRow method sets _focusedNode to null with the expectation that the _restoreFocus method will reset it by calling focus.

However focus will not be called in the case where the _removedFocus object has active set to false. This is expected but means that _focusedNode does not set reset. Calling focus with no arguments on the grid after this will cause an exception.

[ghost]

The easy fix would be to add this._focusedNode = newTarget.element; after line 240 in Keyboard.js.

[kfranqueiro]

Thanks for reporting this. I tested and added the fix you suggested.