From a49a59f43d7c183d741ebee7aa8315f9ae5dd82f Mon Sep 17 00:00:00 2001
From: Simon H <5968653+dummdidumm@users.noreply.github.com>
Date: Tue, 18 Apr 2023 16:00:46 +0200
Subject: [PATCH] set, not add

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

diff --git a/src/runtime/internal/keyed_each.ts b/src/runtime/internal/keyed_each.ts
index 8e1eced981..9e480dd151 100644
--- a/src/runtime/internal/keyed_each.ts
+++ b/src/runtime/internal/keyed_each.ts
@@ -114,6 +114,6 @@ export function validate_each_keys(ctx, list, get_context, get_key) {
 		if (keys.has(key)) {
 			throw new Error(`Cannot have duplicate keys in a keyed each: Keys at index ${keys.get(key)} and ${i} are duplicates`);
 		}
-		keys.add(key, i);
+		keys.set(key, i);
 	}
 }