When using QML TreeView that has Qt.ScrollBarAlwaysOn set, the scrollbar extends past the item's bounds.

If using QApplication instead of QGuiApplication, this issue is not reproducible.

Steps to reproduce:

• Run attached sample
• Observe the scrollbar behaviour
• EXPECTED: Scrollbar is properly shown
• ACTUAL: Scrollbar is always shown, but extends past the item's bounds until it hits the window's bounds