From e050ef745ec923e375d790c9355e79d9a86c1966 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Sat, 14 Aug 1993 04:36:08 +0000
Subject: [PATCH] (property_change_between_p): Test NULL_INTERVAL_P in loop,
 before looking at next->position.

---
 src/textprop.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/textprop.c b/src/textprop.c
index b324217907e..50810e62dfc 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -568,6 +568,8 @@ property_change_between_p (beg, end)
   while (! NULL_INTERVAL_P (next) && intervals_equal (i, next))
     {
       next = next_interval (next);
+      if (NULL_INTERVAL_P (next))
+	return 0;
       if (next->position >= end)
 	return 0;
     }
-- 
2.39.5