From 049ff58566622f569776e3746b114f5f9c76c0c9 Mon Sep 17 00:00:00 2001
From: Patrick Pelissier <patrick.pelissier@gmail.com>
Date: Tue, 7 Mar 2017 22:42:27 +0100
Subject: [PATCH] Add note

---
 m-dict.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/m-dict.h b/m-dict.h
index 5d7a070f..d28fc8c4 100644
--- a/m-dict.h
+++ b/m-dict.h
@@ -321,6 +321,7 @@
  M_C3(dict_, name, _ref)(M_C3(dict_it_, name,_t) it)                    \
  {                                                                      \
    assert(it != NULL);                                                  \
+   /* NOTE: partially unsafe if the user modify the 'key'. */           \
    return M_C3(list_dict_pair_, name, _ref)(it->list_it);               \
  }                                                                      \
                                                                         \