Uncaught Exceptions: - TypeError: undefined is not an object (evaluating 'this._editingNode._element.children') (at DataGrid.js:517:49) _startEditingNodeAtColumnIndex @ DataGrid.js:517:49 moveToNextCell @ DataGrid.js:590:52 _editingCommitted @ DataGrid.js:600:28 _editingCommitted @ [native code] editingCommitted @ EditingSupport.js:189:26 blurEventListener @ EditingSupport.js:137:30 * STEPS TO REPRODUCE 1. Open Storage Tab on a website with no local storage items 2. Select Local Storage in the navigation sidebar 3. Click in first cell and enter text 4. Tab to next cell 5. Enter some text 6. Tab to move cursor to first cell in a new row => Exception