Bug#301610: Acknowledgement (libgtk2.0-0: The number of selected rows is incorrect in "cursor-changed" callback.)

[Igor Belyi]

Sorry, the patch screws us selection process completely... That what you 
get from creating a patch in unfamiliar code. :(

 From debugging I know that the callback is called in 
gtk_tree_view_real_set_cursor() but with Shift and Control modifier the 
real selection happen only in gtk_tree_view_real_select_cursor_row() and 
gtk_tree_view_real_toggle_cursor_row() calls correspondently. I was 
hopping that interchanging them with tk_tree_view_real_set_cursor() will 
do the trick but now although the reporting is correct the selection 
itself sucks - you need to click twice to make a selection.

I don't know if I have enough knowledge to do the right patch.

Igor