LaurentGomila/SFML — pull request #591 by binary1248 (2014-05-12 14:24:32+00:00)
Title: Make sure texture unit 0 is active when reseting RenderTarget states (#5...

...23), fix RenderTarget not clearing when a texture used as a RenderTexture color attachment is left bound in a different context (http://en.sfml-dev.org/forums/index.php?topic=9350.0).