From a30411c9fae8270008a2be03025cf4745d9ad9e1 Mon Sep 17 00:00:00 2001
From: Noam Meltzer <tsnoam@gmail.com>
Date: Fri, 17 Jun 2016 23:58:22 +0300
Subject: [PATCH] make sure to remove the stopped dispatcher threads from
 ASYNC_THREADS

---
 telegram/ext/updater.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/telegram/ext/updater.py b/telegram/ext/updater.py
index 7fb19c569..420763e87 100644
--- a/telegram/ext/updater.py
+++ b/telegram/ext/updater.py
@@ -382,6 +382,7 @@ class Updater(object):
         for i, thr in enumerate(threads):
             self.logger.debug('Waiting for async thread {0}/{1} to end'.format(i + 1, total))
             thr.join()
+            dispatcher.ASYNC_THREADS.remove(thr)
             self.logger.debug('async thread {0}/{1} has ended'.format(i + 1, total))
 
     def _join_threads(self):