From a6864ad907239985bd1f6eab414cec6171930d46 Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 23 Jan 2012 02:37:40 +0000
Subject: [PATCH] key-data.c (key_struct{set,steal}): Assert no other
 references.

Otherwise I predict serious trouble when someone gets the reference
counting wrong.
---
 key-data.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/key-data.c b/key-data.c
index 43ad901..0e79b32 100644
--- a/key-data.c
+++ b/key-data.c
@@ -350,6 +350,7 @@ static void structset(key_data *k, int stealp,
   unsigned f;
 
   assert(((void)"Key is not structured", k->e == KENC_STRUCT));
+  assert(((void)"Key has multiple references", k->ref == 1));
   if (!kd) {
     ks = sym_find(&k->u.s, tag, -1, 0, 0);
     if (ks) sym_remove(&k->u.s, ks);
-- 
2.11.0