From ddc52ab9d6377439c4f1ea4c7be904a15cd20f46 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <jhaberman@gmail.com>
Date: Sun, 11 Oct 2020 17:11:51 -0700
Subject: [PATCH] Shave off one more store.

---
 upb/decode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/upb/decode.c b/upb/decode.c
index 62e7c7d76b..8dcd3df1eb 100644
--- a/upb/decode.c
+++ b/upb/decode.c
@@ -623,7 +623,8 @@ bool upb_decode(const char *buf, size_t size, void *msg, const upb_msglayout *l,
     ok = state.end_group == 0;
   }
 
-  arena->head = state.arena.head;
+  arena->head.ptr = state.arena.head.ptr;
+  arena->head.end = state.arena.head.end;
   return ok;
 }