Rendering from the sequencer in background mode was printing frame 0 for every frame

source/blender/render/intern/source/pipeline.c

@@ -2453,6 +2453,8 @@ static void do_render_seq(Render * re)
 	RenderResult *rr = re->result;
 	int cfra = re->r.cfra;
 
+	re->i.cfra= cfra;
+
 	if(recurs_depth==0) {
 		/* otherwise sequencer animation isnt updated */
 		BKE_animsys_evaluate_all_animation(G.main, (float)cfra); // XXX, was BKE_curframe(re->scene)