From 689dc8a6325d5a0b4b90aeed9e6824d5689e2f8e Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Mon, 4 Jul 2022 17:10:40 +0200
Subject: [PATCH] upstream: unset SASL state on RPL_TRYAGAIN

SASL would get stuck otherwise.
---
 upstream.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/upstream.go b/upstream.go
index 71d3ef3..142d43f 100644
--- a/upstream.go
+++ b/upstream.go
@@ -1701,6 +1701,11 @@ func (uc *upstreamConn) handleMessage(ctx context.Context, msg *irc.Message) err
 			downstreamID = dc.id
 		}
 
+		if command == "AUTHENTICATE" {
+			uc.saslClient = nil
+			uc.saslStarted = false
+		}
+
 		uc.forEachDownstreamByID(downstreamID, func(dc *downstreamConn) {
 			dc.SendMessage(&irc.Message{
 				Prefix:  uc.srv.prefix(),