From ac1dcb0c1a8cfefee42b367cd7621ef95ed9b555 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Wed, 8 Apr 2026 16:09:24 -0400
Subject: [PATCH] fix

---
 .../src/internal/client/dom/blocks/branches.js     | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/packages/svelte/src/internal/client/dom/blocks/branches.js b/packages/svelte/src/internal/client/dom/blocks/branches.js
index a2ffa77c04..308fffaa70 100644
--- a/packages/svelte/src/internal/client/dom/blocks/branches.js
+++ b/packages/svelte/src/internal/client/dom/blocks/branches.js
@@ -158,20 +158,18 @@ export class BranchManager {
 		var defer = should_defer_append();
 
 		if (fn && !this.#onscreen.has(key) && !this.#offscreen.has(key)) {
+			var effect = branch(() => fn(this.anchor));
+
 			if (defer) {
 				var fragment = document.createDocumentFragment();
 				var anchor = create_text();
 				fragment.append(anchor);
 
-				this.#offscreen.set(
-					key,
-					branch(() => fn(anchor))
-				);
+				move_effect_before(effect, anchor);
+
+				this.#offscreen.set(key, effect);
 			} else {
-				this.#onscreen.set(
-					key,
-					branch(() => fn(this.anchor))
-				);
+				this.#onscreen.set(key, effect);
 			}
 		}