ret = diff_cache(active_cache, active_nr);
if (detect_rename)
diffcore_rename(detect_rename, diff_score_opt);
if (pickaxe)
diffcore_pickaxe(pickaxe);
ret = diff_cache(active_cache, active_nr);
if (detect_rename)
diffcore_rename(detect_rename, diff_score_opt);
if (pickaxe)
diffcore_pickaxe(pickaxe);