Segfault when assigning to view.currentIndex in a delegate

The following code causes qmlviewer to segfault:

import Qt 4.6

Rectangle {
Component {
id: appDelegate

Item {
id : wrapper
Script {
function startupFunction()
{
if (index < 5)

{ wrapper.opacity = 0 }

if (index == 5)

{ view.currentIndex = index; }

}
}
Component.onCompleted: startupFunction();
width: 30; height: 30
Text

{ text: index - 5 + 1 }

Keys.onPressed:

{ console.log("In"); }

}
}

Component {
id: appHighlight

Rectangle

{ width: 30; height: 30; color: "lightsteelblue" }

}

GridView

{ id: view anchors.fill: parent cellWidth: 30; cellHeight: 30 model: 35 delegate: appDelegate highlight: appHighlight focus: true }

}

The expected behaviour is that the item at index 5 should be the current index on start.