From 5dcadedca2e5c56b6a631f2342458c7d8a8a0447 Mon Sep 17 00:00:00 2001
From: David Arenas <david.arenas@automattic.com>
Date: Wed, 16 Oct 2024 20:26:23 +0200
Subject: [PATCH] Fix the bug

---
 packages/interactivity/src/proxies/state.ts | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/packages/interactivity/src/proxies/state.ts b/packages/interactivity/src/proxies/state.ts
index f63c84738bcb1a..d4d573acba8847 100644
--- a/packages/interactivity/src/proxies/state.ts
+++ b/packages/interactivity/src/proxies/state.ts
@@ -335,7 +335,10 @@ const deepMergeRecursive = (
 			if ( isNew || ( override && ! isPlainObject( target[ key ] ) ) ) {
 				target[ key ] = {};
 				if ( propSignal ) {
-					propSignal.setValue( target[ key ] );
+					const ns = getNamespaceFromProxy( proxy );
+					propSignal.setValue(
+						proxifyState( ns, target[ key ] as Object )
+					);
 				}
 			}
 			if ( isPlainObject( target[ key ] ) ) {
@@ -344,7 +347,11 @@ const deepMergeRecursive = (
 		} else if ( override || isNew ) {
 			Object.defineProperty( target, key, desc );
 			if ( propSignal ) {
-				propSignal.setValue( desc.value );
+				const { value } = desc;
+				const ns = getNamespaceFromProxy( proxy );
+				propSignal.setValue(
+					shouldProxy( value ) ? proxifyState( ns, value ) : value
+				);
 			}
 		}
 	}