"Inline" overrided property value not applied correctly

See the commit here http://qt.gitorious.org/~mathiasm/qt-components/mathiasm-qt-components/commit/1654a28bae25334fae5a48d5a2f6b993a8220e3d

On line 171 in Gallery.qml, the overriding of the SpinBox's background color defined this way works (see attached snapshot1.png):

property color foo: "red"
SpinBox{ styling.backgroundColor: parent.foo; styling.textColor: column3.fg}

But if the "foo" property is removed and the backgroundColor is set to red "inline", then the background color is not applied (see snapshot2.png):

SpinBox{ styling.backgroundColor: "red"; styling.textColor: column3.fg}

Clone the repo here
git://gitorious.org/~mathiasm/qt-components/mathiasm-qt-components.git
and checkout the QTBUG-17276 branch, or download the code from here
http://qt.gitorious.org/qt-components/mathiasm-qt-components/archive-tarball/QTBUG-17276
To run the code do

./configure
make
make install

and run the examples/Gallery.qml file with qmlviewer.