minor swap of order of validation checks

src/framework/graphics/framebuffer.cpp

@@ -25,13 +25,13 @@ Framebuffer::Framebuffer()
 BOOL Framebuffer::Initialize(GraphicsDevice *graphicsDevice)
 {
 	STACK_TRACE;
-	if (!GraphicsContextResource::Initialize(graphicsDevice))
-		return FALSE;
-	
 	ASSERT(m_framebufferName == 0);
 	if (m_framebufferName != 0)
 		return FALSE;
 	
+	if (!GraphicsContextResource::Initialize(graphicsDevice))
+		return FALSE;
+	
 	CreateFramebuffer();
 	
 	m_viewContext = NULL;