From 3909d9d0780c8ad123e3bdf4cc8d460a83033502 Mon Sep 17 00:00:00 2001
From: Till Faelligen <2353100+S7evinK@users.noreply.github.com>
Date: Fri, 5 Aug 2022 07:58:39 +0200
Subject: [PATCH] Bypass lazyLoadCache if we're doing an initial sync

---
 syncapi/streams/stream_pdu.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/syncapi/streams/stream_pdu.go b/syncapi/streams/stream_pdu.go
index 1003208fd..088c1a7ca 100644
--- a/syncapi/streams/stream_pdu.go
+++ b/syncapi/streams/stream_pdu.go
@@ -497,6 +497,11 @@ func (p *PDUStreamProvider) lazyLoadMembers(
 	}
 	// Add all users the client doesn't know about yet to a list
 	for _, event := range timelineEvents {
+		// If we're doing an initial sync, add all users to the state events, bypassing the cache
+		if !incremental {
+			timelineUsers[event.Sender()] = struct{}{}
+			continue
+		}
 		// Membership is not yet cached, add it to the list
 		if _, ok := p.lazyLoadCache.IsLazyLoadedUserCached(device, roomID, event.Sender()); !ok {
 			timelineUsers[event.Sender()] = struct{}{}