lua-cmsgpack patch for null values in hash tables

lua-cmsgpack-0.4.0-0.rockspec

package = "lua-cmsgpack"
version = "0.4.0-0"
source = {
   url = "git://github.com/antirez/lua-cmsgpack.git",
   tag = "0.4.0"
}
description = {
   summary = "MessagePack C implementation and bindings for Lua 5.1/5.2/5.3",
   homepage = "http://github.com/antirez/lua-cmsgpack",
   license = "Two-clause BSD",
   maintainer = "Salvatore Sanfilippo <[email protected]>"
}
dependencies = {
   "lua >= 5.1"
}
build = {
   type = "builtin",
   modules = {
      cmsgpack = {
         sources = {
            "lua_cmsgpack.c"
         }
      }
   },
   patches = {
      ["null_values_in_hash.patch"] = [[
--- a/lua_cmsgpack.c
+++ b/lua_cmsgpack.c
@@ -565,6 +565,10 @@ void mp_decode_to_lua_hash(lua_State *L, mp_cur *c, size_t len) {
         mp_decode_to_lua_type(L,c); /* key */
         if (c->err) return;
         mp_decode_to_lua_type(L,c); /* value */
+        if (lua_isnil(L, -1)) {
+            lua_pop(L, 1);
+            lua_pushlightuserdata(L, NULL);
+        }
         if (c->err) return;
         lua_settable(L,-3);
     }
]]
   }
}

null_values_in_hash.patch

diff --git a/lua_cmsgpack.c b/lua_cmsgpack.c
index 0b82d00..1df6505 100644
--- a/lua_cmsgpack.c
+++ b/lua_cmsgpack.c
@@ -565,6 +565,10 @@ void mp_decode_to_lua_hash(lua_State *L, mp_cur *c, size_t len) {
         mp_decode_to_lua_type(L,c); /* key */
         if (c->err) return;
         mp_decode_to_lua_type(L,c); /* value */
+        if (lua_isnil(L, -1)) {
+            lua_pop(L, 1);
+            lua_pushlightuserdata(L, NULL);
+        }
         if (c->err) return;
         lua_settable(L,-3);
     }