===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/grid.c,v
retrieving revision 1.70
retrieving revision 1.71
diff -c -r1.70 -r1.71
*** src/usr.bin/tmux/grid.c	2017/04/25 18:20:51	1.70
--- src/usr.bin/tmux/grid.c	2017/05/12 13:00:56	1.71
***************
*** 1,4 ****
! /* $OpenBSD: grid.c,v 1.70 2017/04/25 18:20:51 nicm Exp $ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: grid.c,v 1.71 2017/05/12 13:00:56 nicm Exp $ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 284,290 ****
  
  /* Scroll a region up, moving the top line into the history. */
  void
! grid_scroll_history_region(struct grid *gd, u_int upper, u_int lower)
  {
  	struct grid_line	*gl_history, *gl_upper, *gl_lower;
  	u_int			 yy;
--- 284,290 ----
  
  /* Scroll a region up, moving the top line into the history. */
  void
! grid_scroll_history_region(struct grid *gd, u_int upper, u_int lower, u_int bg)
  {
  	struct grid_line	*gl_history, *gl_upper, *gl_lower;
  	u_int			 yy;
***************
*** 309,315 ****
  
  	/* Then move the region up and clear the bottom line. */
  	memmove(gl_upper, gl_upper + 1, (lower - upper) * sizeof *gl_upper);
! 	memset(gl_lower, 0, sizeof *gl_lower);
  
  	/* Move the history offset down over the line. */
  	gd->hscrolled++;
--- 309,315 ----
  
  	/* Then move the region up and clear the bottom line. */
  	memmove(gl_upper, gl_upper + 1, (lower - upper) * sizeof *gl_upper);
! 	grid_empty_line(gd, lower, bg);
  
  	/* Move the history offset down over the line. */
  	gd->hscrolled++;