From 5beaf50c6799f87748ce68380fd4f2acbe773fac Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Tue, 13 Jul 2021 20:43:44 +0200
Subject: [PATCH] Fix spec: xmpp:set_from_to/3 allows undefined as second
 argument

---
 src/mod_muc_room.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mod_muc_room.erl b/src/mod_muc_room.erl
index eb12a9470..fc03e50ef 100644
--- a/src/mod_muc_room.erl
+++ b/src/mod_muc_room.erl
@@ -4731,7 +4731,7 @@ send_wrapped(From, To, Packet, Node, State) ->
 	    ejabberd_router:route(xmpp:set_from_to(Packet, From, To))
     end.
 
--spec wrap(jid(), jid(), stanza(), binary(), binary()) -> message().
+-spec wrap(jid(), undefined | jid(), stanza(), binary(), binary()) -> message().
 wrap(From, To, Packet, Node, Id) ->
     El = xmpp:set_from_to(Packet, From, To),
     #message{