From 17e8500202b0ef58ab2ac41521006b201cfbf094 Mon Sep 17 00:00:00 2001
From: Toshio Kuratomi <toshio@fedoraproject.org>
Date: Thu, 24 Mar 2016 16:43:03 -0700
Subject: [PATCH] Don't process the same host multiple times

Fixes #14259
---
 lib/ansible/inventory/dir.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ansible/inventory/dir.py b/lib/ansible/inventory/dir.py
index e716987fd5..bb077e036b 100644
--- a/lib/ansible/inventory/dir.py
+++ b/lib/ansible/inventory/dir.py
@@ -159,7 +159,7 @@ class InventoryDirectory(object):
         if 'ungrouped' in self.groups:
             ungrouped = self.groups['ungrouped']
             # loop on a copy of ungrouped hosts, as we want to change that list
-            for host in ungrouped.hosts[:]:
+            for host in frozenset(ungrouped.hosts):
                 if len(host.groups) > 1:
                     host.groups.remove(ungrouped)
                     ungrouped.hosts.remove(host)