Static object on heap prevents Qt plugins from loading

The problem occurs only on Android. It's been tested with API Levels 14, 15 and 22.

Steps to reproduce the problem:

• Create a new Qt Quick application in Qt Creator.
• Insert qDebug() << QImageReader::supportedImageFormats(); into main() after the line with QApplication app(argc, argv);. Insert also required header includes at the beginning of file.
• Add kit "Android for armeabi-v7a" in Build & Run settings of the application.
• Run the application on Android and verify that "jpeg" is listed among supported image formats in application output.
• Create a new C++ class in Qt Creator.
• Add a new private static member to the header file of the class:
  static QNetworkAccessManager *m_netManager;
  Include header of QNetworkAccessManager at the beginning of the file.
• Add the following line to the *.cpp file of the new class:
  QNetworkAccessManager *TestClass::m_netManager = new QNetworkAccessManager();
• Run your application. The list of supported image formats is shorter and JPEG is missing.