From abb13ba176afd8c5da573a8b4b7808082e25b9b8 Mon Sep 17 00:00:00 2001
From: Hallvard Furuseth <hallvard@openldap.org>
Date: Tue, 8 Dec 2015 16:43:55 +0100
Subject: [PATCH] ITS#8334 Fix MDB_APPENDDUP vs. rewrite(single item)

---
 libraries/liblmdb/mdb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 09f1509..0c93c37 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -6642,7 +6642,7 @@ more:
 #endif
 				/* does data match? */
 				if (!dcmp(data, &olddata)) {
-					if (flags & MDB_NODUPDATA)
+					if (flags & (MDB_NODUPDATA|MDB_APPENDDUP))
 						return MDB_KEYEXIST;
 					/* overwrite it */
 					goto current;