From 866f3558141aa68862aa2fedbb7747bf2365e838 Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Tue, 1 Jan 2019 22:19:08 +0100
Subject: [PATCH] patch 8.1.0677: look-behind match may use the wrong line
 number

Problem:    Look-behind match may use the wrong line number. (Dominique Pelle)
Solution:   Use the line number in regsave instead of the one in behind_pos,
            we may be looking at the previous line. (closes #3749)
---
 src/regexp.c  | 2 +-
 src/version.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/regexp.c b/src/regexp.c
index e055dd3623..b7616416c9 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -5582,7 +5582,7 @@ regmatch(
 			if (has_mbyte)
 			{
 			    char_u *line =
-					 reg_getline(behind_pos.rs_u.pos.lnum);
+				  reg_getline(rp->rs_un.regsave.rs_u.pos.lnum);
 
 			    rp->rs_un.regsave.rs_u.pos.col -=
 				(*mb_head_off)(line, line
diff --git a/src/version.c b/src/version.c
index 53dda7f1d3..439e1bc362 100644
--- a/src/version.c
+++ b/src/version.c
@@ -799,6 +799,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    677,
 /**/
     676,
 /**/