From 999e9f6d9722112958d2a780c36ea8a8b18beba2 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Mon, 14 Apr 2025 12:26:26 -0400
Subject: [PATCH] WIP

---
 packages/svelte/src/internal/client/proxy.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/svelte/src/internal/client/proxy.js b/packages/svelte/src/internal/client/proxy.js
index 1060f78671..88f56eba7a 100644
--- a/packages/svelte/src/internal/client/proxy.js
+++ b/packages/svelte/src/internal/client/proxy.js
@@ -120,6 +120,10 @@ export function create_proxy(value, onchanges) {
 		deleteProperty(target, prop) {
 			var s = sources.get(prop);
 
+			if (batching && s ? s.v !== UNINITIALIZED : prop in target) {
+				changed_in_batch = true;
+			}
+
 			if (s === undefined) {
 				if (prop in target) {
 					sources.set(