From 6cec583661b60746bb6caea0fe2d0331769b33b3 Mon Sep 17 00:00:00 2001
From: Bruno Windels <bruno@windels.cloud>
Date: Wed, 1 Sep 2021 14:21:21 +0200
Subject: [PATCH] fix #483

---
 src/matrix/room/timeline/persistence/RelationWriter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/matrix/room/timeline/persistence/RelationWriter.js b/src/matrix/room/timeline/persistence/RelationWriter.js
index afc99e6d..4116b775 100644
--- a/src/matrix/room/timeline/persistence/RelationWriter.js
+++ b/src/matrix/room/timeline/persistence/RelationWriter.js
@@ -191,7 +191,7 @@ export class RelationWriter {
 
     async _reaggregateAnnotation(targetId, key, txn, log) {
         const target = await txn.timelineEvents.getByEventId(this._roomId, targetId);
-        if (!target) {
+        if (!target || !target.annotations) { // unknown or redacted event
             return null;
         }
         log.set("id", targetId);