From e09dbf18b15d6431c5edfce2de0fa695b7d88f83 Mon Sep 17 00:00:00 2001
From: David Lawrence Ramsey <pooka109@gmail.com>
Date: Thu, 17 Aug 2017 02:02:31 -0500
Subject: [PATCH] display: do show the visible character for a tab when it
 starts a row

Regardless of whether the row start is at a multiple of the tab size.

This completes the fix for https://savannah.gnu.org/bugs/?51669.
---
 src/winio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/winio.c b/src/winio.c
index 4395db70..3e40cc9a 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -1907,7 +1907,8 @@ char *display_string(const char *buf, size_t column, size_t span, bool isdata)
 	    /* Show a tab as a visible character, or as as a space. */
 #ifndef NANO_TINY
 	    if (ISSET(WHITESPACE_DISPLAY) && (index > 0 || !isdata ||
-			!ISSET(SOFTWRAP) || column % tabsize == 0)) {
+			!ISSET(SOFTWRAP) || column % tabsize == 0 ||
+			column == start_col)) {
 		int i = 0;
 
 		while (i < whitespace_len[0])