===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/input.c,v
retrieving revision 1.184
retrieving revision 1.185
diff -c -r1.184 -r1.185
*** src/usr.bin/tmux/input.c	2020/10/29 16:33:01	1.184
--- src/usr.bin/tmux/input.c	2020/10/30 11:34:13	1.185
***************
*** 1,4 ****
! /* $OpenBSD: input.c,v 1.184 2020/10/29 16:33:01 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: input.c,v 1.185 2020/10/30 11:34:13 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 1544,1549 ****
--- 1544,1553 ----
  		n = input_get(ictx, 0, 1, 1);
  		if (n == -1)
  			break;
+ 
+ 		m = screen_size_x(s) - s->cx;
+ 		if (n > m)
+ 			n = m;
  
  		if (ictx->last == -1)
  			break;