Hello, i have 2 qtreewidgets on my form.
I need to make d&d from first to second qtreewidget

for first i set dragDropMode -> dragOnly
for second i set dragDropMode -> dropOnly and defaultDropActrion -> CopyAction

but, i have 1 problem.
only 1 qtreewidgetitem is copied, without hierarchy (w/0 child items)

How can i fix this?