QML Menu and ComboBox popups often appear blank white on Linux

The issue is in Qt 5.4.1 (see BlankEditMenu.jpg attached) and has been fixed in 5.5.0-beta, but is still in today's (May 19) 5.4.2 snapshot:
http://download.qt.io/snapshots/qt/5.4/5.4.2/2015-05-19_131/qt-opensource-linux-x86-5.4.2_2015-05-19_13-47-35-131.run

It does not occur on Mac nor Windows. Ubuntu 14.04 is where I see it.

This issue is intermittent and does not always happen. If you click on MenuTest.qml's File/Edit Menus and and ComboBox enough times, the popup will appear blank white. If you click a second time, it will render properly.

import QtQuick                 2.4
import QtQuick.Controls        1.3

ApplicationWindow {
    width: 200;  height: 200
    
    menuBar: MenuBar {
        Menu {
            title: "File"
            MenuItem { text: "Open..." }
        }

        Menu {
            title: "Edit"
            MenuItem { text: "Cut" }
        }
    }
    
    ComboBox{
        model:[1, 2, 3]
    }
}