From 84786ad342ac96425b900acf3b4e28cb1bfb4f05 Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Tue, 9 May 2023 08:50:46 +0100
Subject: [PATCH] Null-guard sync handler in AutoRageshakeStore (#10805)

---
 src/stores/AutoRageshakeStore.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/stores/AutoRageshakeStore.ts b/src/stores/AutoRageshakeStore.ts
index b09205841c..2d20b95da4 100644
--- a/src/stores/AutoRageshakeStore.ts
+++ b/src/stores/AutoRageshakeStore.ts
@@ -142,9 +142,9 @@ export default class AutoRageshakeStore extends AsyncStoreWithClient<IState> {
         }
     }
 
-    private async onSyncStateChange(_state: SyncState, _prevState: SyncState, data: ISyncStateData): Promise<void> {
+    private async onSyncStateChange(_state: SyncState, _prevState: SyncState, data?: ISyncStateData): Promise<void> {
         if (!this.state.initialSyncCompleted) {
-            await this.updateState({ initialSyncCompleted: !!data.nextSyncToken });
+            await this.updateState({ initialSyncCompleted: !!data?.nextSyncToken });
         }
     }