The row selection in RadGrid is not proper if the row is deselected via the checkbox, while the Shift button is pressed.

Steps to reproduce the problem:

1. Open https://demos.telerik.com/aspnet-ajax/grid/examples/columns-rows/columns/column-types/defaultcs.aspx
2. Select first row of the grid.
3. Press SHIFT key and click up to 4th rows.
4. Uncheck checkbox of third row while SHIFT key is pressed.
5. You can see all the rows below third row becomes deselected.
6. But the current row is still highlighted with checkbox unchecked.