fix [#29987] scene.frame_set method doesn't take in account camera change done via markers

source/blender/makesrna/intern/rna_scene_api.c

@@ -57,6 +57,7 @@ static void rna_Scene_frame_set(Scene *scene, int frame, float subframe)
 	
 	CLAMP(scene->r.cfra, MINAFRAME, MAXFRAME);
 	scene_update_for_newframe(G.main, scene, (1<<20) - 1);
+	scene_camera_switch_update(scene);
 
 	/* cant use NC_SCENE|ND_FRAME because this casues wm_event_do_notifiers to call 
 	 * scene_update_for_newframe which will loose any un-keyed changes [#24690] */