From 196997d0a848621999cfa77673b24b65b972d581 Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Tue, 15 Mar 2022 09:43:25 -0500
Subject: [PATCH] fix: dupe check

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

diff --git a/packages/core/src/property.js b/packages/core/src/property.js
index c77032d..c19b4e9 100644
--- a/packages/core/src/property.js
+++ b/packages/core/src/property.js
@@ -17,7 +17,7 @@ export default function PropertyMixin(key, meta = {}) {
   }
   return (Superclass) => {
     // Sanity check.
-    if (Superclass.prototype[key]) {
+    if (key in Superclass.prototype) {
       throw new SyntaxError(`redeclaration of Avocado property ${key}`);
     }
     // Handle defaults.