Bug report
Selecting a row on a parent grid with selectable enabled unticks checkboxes from the selectable column in child grids

Reproduction of the problem

Dojo: https://dojo.telerik.com/ilOCAJeg

1. Select rows in a child Grid

2. Select a row in the parent Grid

Expected/desired behavior
The checkbox ticks shall be persisted when the user selects a row in the parent grid

Environment
**Kendo UI version: [all]
**jQuery version: [all]
**Browser: [all]