http://bugs.winehq.org/show_bug.cgi?id=34238
--- Comment #27 from Rico kgbricola@web.de 2013-09-02 08:00:47 CDT --- This patch http://lists.freedesktop.org/archives/mesa-dev/2013-September/044152.html may help, but it is for mesa. It works fine when using e.g. "MESA_GL_VERSION_OVERRIDE=1.3 ./main_linux" here. You may give it a try.
Maybe the piglit test valid-attribute-null/empty are candidates. But these tests don't care if they got a direct or indirect context.