From c9443b306b8afe1703fe51fea505536bfcb6f8ec Mon Sep 17 00:00:00 2001
From: Damian Osipiuk <osipiukd+git@gmail.com>
Date: Fri, 10 Oct 2025 23:10:04 +0200
Subject: [PATCH] fix(query-persist-client-core): allow restoring null values

---
 .changeset/tender-cameras-brush.md                        | 5 +++++
 packages/query-persist-client-core/src/createPersister.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/tender-cameras-brush.md

diff --git a/.changeset/tender-cameras-brush.md b/.changeset/tender-cameras-brush.md
new file mode 100644
index 0000000000..0f512707a7
--- /dev/null
+++ b/.changeset/tender-cameras-brush.md
@@ -0,0 +1,5 @@
+---
+'@tanstack/query-persist-client-core': patch
+---
+
+allow restoring null values
diff --git a/packages/query-persist-client-core/src/createPersister.ts b/packages/query-persist-client-core/src/createPersister.ts
index a9aba4a959..55fccc5558 100644
--- a/packages/query-persist-client-core/src/createPersister.ts
+++ b/packages/query-persist-client-core/src/createPersister.ts
@@ -221,7 +221,7 @@ export function experimental_createQueryPersister<TStorageValue = string>({
         },
       )
 
-      if (restoredData != null) {
+      if (restoredData !== undefined) {
         return Promise.resolve(restoredData as T)
       }
     }