update included Lua.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/lua/ltable.c b/src/lua/ltable.c
index e9410f9..e98bab7 100644
--- a/src/lua/ltable.c
+++ b/src/lua/ltable.c
@@ -647,6 +647,8 @@ void luaH_newkey (lua_State *L, Table *t, const TValue *key, TValue *value) {
     else if (unlikely(luai_numisnan(f)))
       luaG_runerror(L, "table index is NaN");
   }
+  if (ttisnil(value))
+    return;  /* do not insert nil values */
   mp = mainpositionTV(t, key);
   if (!isempty(gval(mp)) || isdummy(t)) {  /* main position is taken? */
     Node *othern;