From 4bdf9e3db4214413711f77eebb8d51a4e3b834ed Mon Sep 17 00:00:00 2001
From: Simon Holthausen <simon.holthausen@vercel.com>
Date: Tue, 15 Sep 2026 23:14:57 +0200
Subject: [PATCH] apply needs to happen before commit callbacks because they
 can create new batches, causing bugs

---
 packages/svelte/src/internal/client/reactivity/batch.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/svelte/src/internal/client/reactivity/batch.js b/packages/svelte/src/internal/client/reactivity/batch.js
index 52f5ba3f5f..9a2b189198 100644
--- a/packages/svelte/src/internal/client/reactivity/batch.js
+++ b/packages/svelte/src/internal/client/reactivity/batch.js
@@ -465,11 +465,12 @@ export class Batch {
 		this.#dirty_effects.clear();
 		this.#maybe_dirty_effects.clear();
 
+		this.apply(true);
+
 		// append/remove branches
 		for (const fn of this.#commit_callbacks) fn(this);
 		this.#commit_callbacks.clear();
 
-		this.apply(true);
 		previous_batch = this;
 		flush_queued_effects(render_effects);
 		flush_queued_effects(effects);