From 0f1738b09875140ab24407a55f0dfbe5edda8d38 Mon Sep 17 00:00:00 2001
From: Germain <germains@element.io>
Date: Wed, 26 Oct 2022 14:19:36 +0100
Subject: [PATCH] Fix getReadReceiptsForEvent for unknown threads (#9507)

---
 src/components/structures/MessagePanel.tsx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/components/structures/MessagePanel.tsx b/src/components/structures/MessagePanel.tsx
index 223eb0a6db..56c396750f 100644
--- a/src/components/structures/MessagePanel.tsx
+++ b/src/components/structures/MessagePanel.tsx
@@ -835,6 +835,13 @@ export default class MessagePanel extends React.Component<IProps, IState> {
             : room;
 
         const receipts: IReadReceiptProps[] = [];
+
+        if (!receiptDestination) {
+            logger.debug("Discarding request, could not find the receiptDestination for event: "
+                + this.context.threadId);
+            return receipts;
+        }
+
         receiptDestination.getReceiptsForEvent(event).forEach((r) => {
             if (
                 !r.userId ||