From efdcd396d8b7314e29212c31869a725a72ef5f78 Mon Sep 17 00:00:00 2001
From: mathieui <mathieui@mathieui.net>
Date: Mon, 25 Jan 2021 09:56:53 +0100
Subject: xmlstream: fix race conditions on handlers

---
 slixmpp/xmlstream/xmlstream.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slixmpp/xmlstream/xmlstream.py b/slixmpp/xmlstream/xmlstream.py
index c8f797ac..77bb9e4a 100644
--- a/slixmpp/xmlstream/xmlstream.py
+++ b/slixmpp/xmlstream/xmlstream.py
@@ -833,7 +833,7 @@ class XMLStream(asyncio.BaseProtocol):
         """
         log.debug("Event triggered: %s", name)
 
-        handlers = self.__event_handlers.get(name, [])
+        handlers = self.__event_handlers.get(name, [])[:]
         for handler in handlers:
             handler_callback, disposable = handler
             old_exception = getattr(data, 'exception', None)
-- 
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