title: iOS 6 app crashes in EAGLContext when displaying maps
body: <p>We have an app that uses OpenGL and <code>MKMapView</code>. When we switched to iOS 6 it started crashing at <code>[EAGLContext setCurrentContext:]</code> with EXC_BAD_ACCESS whenever we tried to display a map after setting our own <code>EAGLContext</code>.</p>