List item position and count calculation depends on visible area at least on linux

I have tested with orca 3.13 pre and transmission-qt with QT 5.3.0
0) make sure both orca and transmission-qt are running.
1) Add more torrents to the list than your screen size allow viewing without scrolling for example I do have 11 torrents.
2) tab around in order to focus the list on the main window, press down arrow and then home to make sure the first item gets selected.
3) Now use the where am I feature of orca to retrieve curent list position as well as number of items by pressing numpad plus.
4) Examine the output. For example I am getting "list item <name> 1 of 7" while the first item is selected. "2 of 7" for the second item, "7 of 7" when the 7th item is selected, ", "7 of 8" when 8, 9 and 10 item is selected and "7 of 7" for the last item. I suspect this is not handling the real item indexes but indexes of the items currently visible on the screen.