From 6e402e8fd2c2b131affef3feb87c0931953f6215 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Mon, 1 Dec 2025 00:10:29 +0200
Subject: [PATCH] bridgev2/backfill: don't try to backfill empty threads

---
 bridgev2/portalbackfill.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bridgev2/portalbackfill.go b/bridgev2/portalbackfill.go
index 88503380..e8292388 100644
--- a/bridgev2/portalbackfill.go
+++ b/bridgev2/portalbackfill.go
@@ -194,6 +194,9 @@ func (portal *Portal) doThreadBackfill(ctx context.Context, source *UserLogin, t
 	if err != nil {
 		log.Err(err).Msg("Failed to get last thread message")
 		return
+	} else if anchorMessage == nil {
+		log.Warn().Msg("No messages found in thread?")
+		return
 	}
 	resp := portal.fetchThreadBackfill(ctx, source, anchorMessage)
 	if resp != nil {