From fa2517402679ee5c5c9da10e6200c8568a395af7 Mon Sep 17 00:00:00 2001
From: Kenichi Handa <handa@m17n.org>
Date: Mon, 6 Apr 1998 05:06:12 +0000
Subject: [PATCH] (Fstring_as_unibyte): Set size_byte field to -1.

---
 src/fns.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/fns.c b/src/fns.c
index c98cb2547b8..7bd7c5b613a 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -858,6 +858,7 @@ If STRING is unibyte, the result is STRING itself.")
     {
       string = Fcopy_sequence (string);
       XSTRING (string)->size = STRING_BYTES (XSTRING (string));
+      SET_STRING_BYTES (XSTRING (string), -1);
     }
   return string;
 }
-- 
2.39.2