From f0d2a990c8776f0527fec4bb482b5d44bca23124 Mon Sep 17 00:00:00 2001
From: Tomohiro Arakawa <tomohiro@tarakawa.net>
Date: Fri, 14 May 2021 01:24:48 -0400
Subject: [PATCH] Fix bug in diff function

---
 src/core.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core.ts b/src/core.ts
index b9c43e6..d3c816b 100644
--- a/src/core.ts
+++ b/src/core.ts
@@ -71,7 +71,7 @@ export function diff(document1: Document, document2: Document): Change {
         change[key] = diff(document1[key], document2[key]);
       }
       // Otherwise, just copy the content to change
-      else {
+      else if (document1[key] !== document2[key]) {
         change[key] = document2[key];
       }
     }