===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/regsub.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -c -r1.2 -r1.3
*** src/usr.bin/tmux/regsub.c	2019/06/20 15:40:14	1.2
--- src/usr.bin/tmux/regsub.c	2019/11/24 18:37:23	1.3
***************
*** 1,4 ****
! /* $OpenBSD: regsub.c,v 1.2 2019/06/20 15:40:14 nicm Exp $ */
  
  /*
   * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: regsub.c,v 1.3 2019/11/24 18:37:23 nicm Exp $ */
  
  /*
   * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 106,111 ****
--- 106,117 ----
  			last = m[0].rm_eo;
  			start = m[0].rm_eo + 1;
  			empty = 1;
+ 		}
+ 
+ 		/* Stop now if anchored to start. */
+ 		if (*pattern == '^') {
+ 			regsub_copy(&buf, &len, text, start, end);
+ 			break;
  		}
  	}
  	buf[len] = '\0';