BusyIndicator in material style goes nuts when scrolling through ListView

When you have a BusyIndicator while using the material QtQuick Controls 2 style, scrolling to a list makes it go completely crazy.

import QtQuick 2.7
import QtQuick.Controls 2.0

ApplicationWindow {
    visible: true
    width: 640
    height: 480

    ListView {
        anchors.fill: parent
        model: 500

        delegate: BusyIndicator {
            running: true
        }
    }
}

Now scroll through the list and stop. The busy indicator will rotate at insane speeds now. This is not an issue with the default flat or univeral style. It is expected that the animation starts fresh as the items get destroyed and re-created as we scroll but it shouldn't go completely crazy.