This seems risky, but I can't think of a scenario where

there is a problem. In all cases the screen appearance
is either the same or better after this change.
...{d}

forwback.c

@@ -399,7 +399,7 @@ forw(n, pos, force, only_last, nblank)
  else
  {
  overlay_header();
- lower_left();
+ /* lower_left(); {{ considered harmful? }} */
  }
  first_time = 0;
  (void) currline(BOTTOM);