When adding Qt Quick sourceItem to Texture, user needs to add also these to get it flipped correctly:
...
scaleV: -1
tilingModeHorizontal: Texture.Repeat
tilingModeVertical: Texture.Repeat
...
Textures with sourceItem could be flipped automatically and these removed from all examples/tests/demos. Sourceitem manual test also contains comment "// TODO: shouldn't be needed" for these lines.