[ogles/android?] draw2DImage draws texture mirrored

[xyz]

Calling draw2DImage on a texture gotten by rendering to texture (example 13) produces mirrored texture.

Code: https://gist.github.com/xyzz/f5a720b0bbe4a2b2cda6 (should compile for both Android and PC)

PC: http://i.imgur.com/zVHJwoA.png

Android: http://i.imgur.com/TenRlC1.png (there's some screenshot glitch not related to Irrlicht but you get the idea)

[xyz]

This seems to be "fixed" if I make isRTT in draw2DImage false no matter what texture->isRenderTarget() returns.