Modelview example 'Expanding List' does not show correctly

After installing the beta package ( qt-5.0.0-beta-offline-linux-x86_32-ubuntu1204.run ), the 'modelviews' example in $INSTALL/Desktop/Qt/5.0.0/gcc/examples/qtdeclarative/qtquick/modelviews does not show the 'Expanding List' example correctly.

The example initially appears to work correctly, but when new items are added to the list, they are not allocated enough vertical space. The attached screenshot shows the list after all but two items are removed, and then two new items are added.