QQuickItem::nextItemInFocusChain() ends up in infinite loop when isTabFence is set to true on the item

This happens on a QQuickItem that has no child Items that would be focusable using Tab/Backtab, and isTabFence is set to true. The nextItemInFocusChain() has been called programatically to find out whether the Item has any key navigation focusable child element.