Problem when deleting row with subgrid

When smart rendering is enabled and a row with open subgrid is deleted then the row is removed but subgrid is not. Same happens with subrow. Can be repeated e.g. with 03_pro_subgrids.html sample, just enable smart rendering and delete any of the first three rows. Can you address this issue?

The problem is confirmed.
We’re working on a solution.

The problem is fixed.
The fix will be included in the future version of the dhtmlxGrid.