From 6f71552c508c61d9b6bf024fc259063ad056b7c4 Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Sun, 7 Jul 2019 20:16:57 -0400
Subject: [PATCH] [commands] Don't update sys.modules with a stale reference.

---
 discord/ext/commands/bot.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/discord/ext/commands/bot.py b/discord/ext/commands/bot.py
index 9cdef77b9..c318408b7 100644
--- a/discord/ext/commands/bot.py
+++ b/discord/ext/commands/bot.py
@@ -605,7 +605,7 @@ class BotBase(GroupMixin):
             self._call_module_finalizers(lib, key)
             raise errors.ExtensionFailed(key, e) from e
         else:
-            sys.modules[key] = self.__extensions[key] = lib
+            self.__extensions[key] = lib
 
     def load_extension(self, name):
         """Loads an extension.