Qt5.3 regression in QML StackView? (especially on Android)

There appears to be a regression from Qt 5.2.1 (current online installer for Linux 64 bit) going to Qt 5.3 (current git stable) in the behaviour of the Qt Quick Control StackView.

On Android (testing on an API19 Android Virtual Device), the test code works as intended under Qt 5.2.1, but gives a blank white space instead of a StackView under Qt 5.3.0 (git stable).

Replace the default main.qml generated by a new QtQuick project in QtCreator with the attached file using StackView. The app works as expected in Qt 5.2.1: the text in HelpPage.qml is initially displayed and can be replaced by AboutPage.qml by clicking on the Menu items.

Compiling under Qt 5.3.0, the space occupied by the StackView comes up blank, not showing the text. The menu can still be seen.

There is also a difference in behaviour building for Linux desktop. The app starts with a reasonable initial size (width&height) under Qt 5.2.1, but starts with zero size (zero width) under Qt 5.3. On the desktop I can manually resize, after which the app behaves "normally". Desktop behaviour could be easily controlled (e.g. accessing the QWindow associated with the QQmlApplicationEngine, showMaximised(), etc), but the failure on Android still then remains.