From 56c1361ee83db8b68859caf0850c95ff70e7e306 Mon Sep 17 00:00:00 2001
From: Richard Moore <me@ricmoo.com>
Date: Wed, 17 Jan 2024 20:33:38 -0500
Subject: [PATCH] Normalize EIP-712 types before computing the payload (#4541).

---
 src.ts/hash/typed-data.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src.ts/hash/typed-data.ts b/src.ts/hash/typed-data.ts
index 5a53ab4ec..a21710782 100644
--- a/src.ts/hash/typed-data.ts
+++ b/src.ts/hash/typed-data.ts
@@ -607,6 +607,9 @@ export class TypedDataEncoder {
 
         const encoder = TypedDataEncoder.from(types);
 
+        // Get the normalized types
+        types = encoder.types;
+
         const typesWithDomain = Object.assign({ }, types);
         assertArgument(typesWithDomain.EIP712Domain == null, "types must not contain EIP712Domain type", "types.EIP712Domain", types);