From d56241657fede51229e8c7f1253c4db3390f220f Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Mon, 21 May 2018 17:46:19 -0700
Subject: [PATCH] modules/federation/sender: Use json::undefined_integer here.

---
 modules/federation/sender.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/federation/sender.cc b/modules/federation/sender.cc
index 1c665c95d..878c43278 100644
--- a/modules/federation/sender.cc
+++ b/modules/federation/sender.cc
@@ -90,6 +90,9 @@ send(const m::event &event)
 		json::get<"room_id"_>(event)
 	};
 
+	if(json::get<"depth"_>(event) == json::undefined_number)
+		return;
+
 	if(room_id)
 		return send(event, room_id);
 }