[Lazarus] TTreeView and SortType

[Sven Barth]

Hello together!

I've experimented a bit with TTreeView and the SortType property.

Is it correct behavior that sorting is not applied when SortType is set 
to stText and nodes are added out of order? I need to do a

SortType := stNone;
SortType := stText;

after the insertion to trigger the sort.

Regards,
Sven