Empty ListItemID values give an error in the flagged requests list
1. Click on a list of Flagged Requests.
2. Any empty ListItemIDs are tripping the InvalidCastException catch
We can fix the problem by changing the if rowCellValue != null to if rowCellValue as(T) != null, so that the casting happens before we attempt to add it to the list.
Released in Ares 4.6.6