ListView contentHeight & footer positioning are incorrect when the ListView fills its parent and the ListView's model count is 0

Steps to reproduce

1. Create a ListView that fills its parent
2. Define header and footer components
3. Run the QML file in QMLViewer
4. Scroll the ListView up

Result:
The view can be scrolled by the height of the footer, and the footer overlaps the header (until an item is added to the model).

Expected:
The view does not scroll (it rubberbands back), and the footer is correctly positioned below the header.