From 9d840bec3e0a2ddac938870694b4cdc30e6014e1 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Mon, 20 Jun 1994 01:52:51 +0000
Subject: [PATCH] (tab-to-tab-stop): Combine new indentation with previous.

---
 lisp/indent.el | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lisp/indent.el b/lisp/indent.el
index e7f4605b682..17e58241fd1 100644
--- a/lisp/indent.el
+++ b/lisp/indent.el
@@ -238,7 +238,10 @@ Use \\[edit-tab-stops] to edit them interactively."
     (while (and tabs (>= (current-column) (car tabs)))
       (setq tabs (cdr tabs)))
     (if tabs
-	(indent-to (car tabs))
+	(let ((opoint (point)))
+	  (skip-chars-backward " \t")
+	  (delete-region (point) opoint)
+	  (indent-to (car tabs)))
       (insert ?\ ))))
 
 (defun move-to-tab-stop ()
-- 
2.30.2