Checkboxes in delegate are randomly checked/unchecked

The check state of the checkboxes in a treeview change randomly when there are interactions, for example by repeatedly clicking the nodes, or when you resize the window and make it smaller and try to scroll it vertically.

Steps to reproduce:
1) build and run the attached example with Qt 6.5.1
2) expand the nodes and start clicking repeatedly on one of the nodes, you can see that checkboxes in delegate are randomly checked/unchecked

However, if line 88 in the Main.qml file is commented out, it will alleviate the issue, the checkboxes initially maintain their checked or unchecked state and do not change randomly unless the check states are manually manipulated, after that the issue appears again when repeatedly clicking the nodes.