How to use var properties for lists of elements?

[usovalx]

Can you help me to figure out correct way to use lists in custom QML properties?
Here is example:

--- Elem.qml
@import QtQuick 2.0

QtObject {
property string name
}@

--- Cont.qml
@import QtQuick 2.0

QtObject {
property var elements
}
@

--- main.qml
@import QtQuick 2.2

Rectangle {
Cont {
elements: [
Elem { name: "1" },
Elem { name: "2" }
]
}
}@

Running this using qmlscene from Qt-5.2 produces following error:
@Starting /opt/qt-5.2.1/5.2.1/gcc_64/bin/qmlscene...
file:///home/usov/build/qml/main.qml:6 Cannot assign multiple values to a singular property

/opt/qt-5.2.1/5.2.1/gcc_64/bin/qmlscene exited with code 255@

As far as I understand, this means that last paragraph of "this QML manual page":http://qt-project.org/doc/qt-5/qml-list.html is wrong.