SVG not supported on deployed application after defining static const QList<QImage>

I attached a project.

If I create a class with a QList<QImage> property and feed it with QImage objects in its definition then the application has a problem with decoding SVG images in QML, but only after deploy. It works well in Qt Creator. Of course it seems that I am missing some libraries but this does not seem to be a case here. I have experience with Windows deploys and I am positive it was done correctly. Beside that copying every possible plugin/dll to the deploy directory does not change anything

Removing definition, or just simplifying it to QList<QImage>() fixes the problem.

The error message I receive is:

qrc:///main.qml:13:5: QML Image: B??d dekodowania: qrc:/img2.svg: Nieobs?ugiwany format obrazu
qrc:///main.qml:10:5: QML Image: B??d dekodowania: qrc:/img1.svg: Nieobs?ugiwany format obrazu
// which translates to
qrc:///main.qml:13:5: QML Image: error decoding: qrc:/img2.svg: unsupported image format
qrc:///main.qml:10:5: QML Image: error decoding: qrc:/img1.svg: unsupported image format

Steps I made to deploy application:

1. run qmake, rebuild application
2. run wideployqt, using following command: "C:\Qt\5.6\msvc2013_64\bin\windeployqt" --qmldir "C:/QtProjekty/testSvgNotSupported" "TestSvgNotSupported.exe" -qml -quick
3. copy msvc redist dlls

Code that does break SVG loading in QML:

// testclass.h
#ifndef TESTCLASS_H
#define TESTCLASS_H

#include <QList>
#include <QImage>

class TestClass
{
public:
    static const QList<QImage> images;
};
#endif // TESTCLASS_H

// testclass.cpp
#include "testclass.h"

const QList<QImage> TestClass::images = QList<QImage>()
        << QImage(":/img1.png")
        << QImage(":/img2.png");
// const QList<QImage> TestClass::images = QList<QImage>(); // works well