From dab8bd8eb49dd122a6da4916800d28bf36b67765 Mon Sep 17 00:00:00 2001
From: alt0 <wxlxinglong@outlook.com>
Date: Thu, 22 Dec 2022 15:36:12 +0800
Subject: [PATCH] fix: buffer length 0 issue

---
 .../providers/app-state-provider/dynamic-blocksuite.tsx  | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/app/src/providers/app-state-provider/dynamic-blocksuite.tsx b/packages/app/src/providers/app-state-provider/dynamic-blocksuite.tsx
index e7d8447b3f..c2a803e529 100644
--- a/packages/app/src/providers/app-state-provider/dynamic-blocksuite.tsx
+++ b/packages/app/src/providers/app-state-provider/dynamic-blocksuite.tsx
@@ -91,10 +91,13 @@ const DynamicBlocksuite = ({
         if (indexDBProvider) {
           (indexDBProvider as IndexedDBDocProvider)?.on('synced', async () => {
             const updates = await downloadWorkspace({ workspaceId });
-            updates &&
+
+            if (updates.byteLength) {
               Workspace.Y.applyUpdate(workspace.doc, new Uint8Array(updates));
-            // if after update, the space:meta is empty, then we need to get map with doc
-            workspace.doc.getMap('space:meta');
+              // if after update, the space:meta is empty, then we need to get map with doc
+              workspace.doc.getMap('space:meta');
+            }
+
             resolve(workspace);
           });
         } else {