From 7eef3b35714b77641e98d47666aa0cc3030f0586 Mon Sep 17 00:00:00 2001
From: "Gareth J. Greenaway" <gareth@wiked.org>
Date: Thu, 19 Oct 2017 10:39:11 -0700
Subject: [PATCH] Adding a copy.deepcopy to the for loop that looks for old
 jobs to avoid stale jobs ending up in the list.

---
 salt/utils/schedule.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/salt/utils/schedule.py b/salt/utils/schedule.py
index 5b182d1c80..ea6628427e 100644
--- a/salt/utils/schedule.py
+++ b/salt/utils/schedule.py
@@ -1139,7 +1139,8 @@ class Schedule(object):
                     # Sort the list of "whens" from earlier to later schedules
                     _when.sort()
 
-                    for i in _when:
+                    # Copy the list so we can loop through it
+                    for i in copy.deepcopy(_when):
                         if i < now and len(_when) > 1:
                             # Remove all missed schedules except the latest one.
                             # We need it to detect if it was triggered previously.