From e38c5216b98408bbfa5ed9f05d62bb5fd1aeb2cc Mon Sep 17 00:00:00 2001
From: dan <dan@clarun.xyz>
Date: Thu, 22 Jan 2026 10:47:27 -0800
Subject: [PATCH] Restore thread replies with preview suppression

---
 internal/matrixbot/bot.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/internal/matrixbot/bot.go b/internal/matrixbot/bot.go
index 8ac8ea5..e5c6b2f 100644
--- a/internal/matrixbot/bot.go
+++ b/internal/matrixbot/bot.go
@@ -207,6 +207,13 @@ func (b *Bot) sendReply(ctx context.Context, evt *event.Event, response string)
 		content.FormattedBody = formatted
 	}
 
+	original := evt.Content.AsMessage()
+	if original != nil && original.RelatesTo != nil && original.RelatesTo.GetThreadParent() != "" {
+		content.SetThread(evt)
+	} else {
+		content.SetReply(evt)
+	}
+
 	_, err := b.client.SendMessageEvent(ctx, evt.RoomID, event.EventMessage, content)
 	return err
 }