GridLayout rowSpan bug

[Dmitry89]

how to make that magenta rectangle became 6 times shorter than the red one?

@ GridLayout {
id: gridLayout
anchors.fill: parent
flow: GridLayout.TopToBottom
Rectangle {
color: "magenta"
Layout.row: 0
Layout.column: 0
Layout.fillHeight: true
Layout.fillWidth: true
Layout.rowSpan: 1
}
Rectangle {
Layout.row: 0
Layout.column: 1
color: "red"
Layout.rowSpan: 6
Layout.fillHeight: true
Layout.fillWidth: true
}
}@

it seems that rowSpan is broken

http://i.stack.imgur.com/nHfmB.gif