From 90c3b5ee6f5ed5b5b19db0f8f3a9216014b0cf6b Mon Sep 17 00:00:00 2001
From: "tao.chen" <93983997+taochen-ct@users.noreply.github.com>
Date: Wed, 5 Aug 2026 19:14:05 +0800
Subject: [PATCH] fix: save version error

---
 backend/src/backend/services/storage.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/backend/src/backend/services/storage.py b/backend/src/backend/services/storage.py
index 0789b43..6f72678 100644
--- a/backend/src/backend/services/storage.py
+++ b/backend/src/backend/services/storage.py
@@ -406,6 +406,16 @@ async def create_server_object_payload(
     )
     session.add(item)
     await session.flush()
+    # Force SQLAlchemy to round-trip server-default columns
+    # (created_at / updated_at / is_deleted) in the *current* async
+    # context. ``eager_defaults="auto"`` on the mapper does not
+    # guarantee a refresh for non-PK server defaults; without this,
+    # ``storage_payload`` (a sync helper) would later trigger a lazy
+    # refresh through the async driver and raise MissingGreenlet.
+    await session.refresh(
+        item,
+        attribute_names=["created_at", "updated_at", "is_deleted"],
+    )
     item.relative_path = payload.relative_path
     upload.storage_object_id = item.storage_object_id
     upload.upload_status = "completed"