From 1117c77d05f00501a3560a72cf265c7b09be3732 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Thu, 1 Oct 2020 14:36:00 +0200
Subject: [PATCH] note for future optimisation

---
 src/matrix/room/timeline/persistence/SyncWriter.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/matrix/room/timeline/persistence/SyncWriter.js b/src/matrix/room/timeline/persistence/SyncWriter.js
index 7f2275b1..231f7295 100644
--- a/src/matrix/room/timeline/persistence/SyncWriter.js
+++ b/src/matrix/room/timeline/persistence/SyncWriter.js
@@ -104,6 +104,8 @@ export class SyncWriter {
             const memberChange = new MemberChange(this._roomId, event);
             const {member} = memberChange;
             if (member) {
+                // TODO: can we avoid writing redundant members here by checking
+                // if this is not a limited sync and the state is not in the timeline?
                 txn.roomMembers.set(member.serialize());
                 return memberChange;
             }