Why QTreeView only expands on doubleclicks on some of the columns?
I have QTreeView with data supplied with QItemSelectionModel with 2 columns.
These were called from the tree constructor:
But for some reason only doubleclicks on the first column expand the items. And doubleclicks on the second columns do nothing.
How can I understand why doubleclicks on the second column don't expand the items in the tree?