From 565dbb2fe5406f2a86d43a5b3c6993434b7124a7 Mon Sep 17 00:00:00 2001
From: Kristiyan Kostadinov <crisbeto@abv.bg>
Date: Fri, 7 Aug 2026 09:58:22 +0200
Subject: [PATCH] fix(core): incorrect loop in defer blocks

Fixes that we were running a `for in` loop on an array and silently doing the wrong thing.

Fixes #70113.
---
 packages/core/src/defer/triggering.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/src/defer/triggering.ts b/packages/core/src/defer/triggering.ts
index cd69a12e73e..3db141d3c27 100644
--- a/packages/core/src/defer/triggering.ts
+++ b/packages/core/src/defer/triggering.ts
@@ -541,7 +541,7 @@ function cleanupRemainingHydrationQueue(
   dehydratedBlockRegistry: DehydratedBlockRegistry,
 ) {
   const blocksBeingHydrated = dehydratedBlockRegistry.hydrating;
-  for (const dehydratedBlockId in hydrationQueue) {
+  for (const dehydratedBlockId of hydrationQueue) {
     blocksBeingHydrated.get(dehydratedBlockId)?.reject();
   }
   dehydratedBlockRegistry.cleanup(hydrationQueue);