From 842de08b47385c58f3554a971af33ca22d448a1c Mon Sep 17 00:00:00 2001
From: jesopo
Date: Sun, 10 Apr 2016 17:31:05 +0100
Subject: changed code to avoid a crash when some ircd will show a mode being
 removed from someone that didn't have it in the first place.

---
 IRCChannel.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/IRCChannel.py b/IRCChannel.py
index 666ebfcd..54a174db 100644
--- a/IRCChannel.py
+++ b/IRCChannel.py
@@ -37,7 +37,7 @@ class Channel(object):
         if not args:
             del self.modes[mode]
         else:
-            self.modes[mode].remove(args.lower())
+            self.modes[mode].discard(args.lower())
             if not len(self.modes[mode]):
                 del self.modes[mode]
         self.bot.events.on("mode").on("channel").call(
-- 
cgit v1.3.1-10-gc9f91