From cdeb75976c5313b95c9dfd219d14a718fb5194aa Mon Sep 17 00:00:00 2001
From: delthas <delthas@dille.cc>
Date: Wed, 12 Oct 2022 17:28:25 +0200
Subject: Fix crashing on ISUPPORT PREFIX=

On servers without prefixes, we previously crashed because of a missing
break.

The intended logic was to only process the string if it was not empty.
---
 irc/session.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/irc/session.go b/irc/session.go
index 3a6d4e1..63de30f 100644
--- a/irc/session.go
+++ b/irc/session.go
@@ -1530,6 +1530,7 @@ func (s *Session) updateFeatures(features []string) {
 			if value == "" {
 				s.prefixModes = ""
 				s.prefixSymbols = ""
+				break Switch
 			}
 			if len(value)%2 != 0 {
 				break Switch
-- 
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