From cdc762dd9e09780869d26ec409061b6bd8657be9 Mon Sep 17 00:00:00 2001
From: Brian Coca <bcoca@users.noreply.github.com>
Date: Tue, 24 Jul 2018 08:54:58 -0400
Subject: [PATCH] don't assume all delegation subkeys exist (#43032)

* don't assume all delegation subkeys exist

fixes #43026

* add tests
---
 lib/ansible/executor/task_result.py                       | 3 ++-
 .../targets/delegate_to/delegate_and_nolog.yml            | 8 ++++++++
 test/integration/targets/delegate_to/runme.sh             | 2 ++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 test/integration/targets/delegate_to/delegate_and_nolog.yml

diff --git a/lib/ansible/executor/task_result.py b/lib/ansible/executor/task_result.py
index f0b20f844b..ba5bc93f2d 100644
--- a/lib/ansible/executor/task_result.py
+++ b/lib/ansible/executor/task_result.py
@@ -126,7 +126,8 @@ class TaskResult:
                 if sub in self._result:
                     x[sub] = {}
                     for key in _SUB_PRESERVE[sub]:
-                        x[sub][key] = self._result[sub][key]
+                        if key in self._result[sub]:
+                            x[sub][key] = self._result[sub][key]
 
             result._result = x
         elif self._result:
diff --git a/test/integration/targets/delegate_to/delegate_and_nolog.yml b/test/integration/targets/delegate_to/delegate_and_nolog.yml
new file mode 100644
index 0000000000..d8ed64fe2f
--- /dev/null
+++ b/test/integration/targets/delegate_to/delegate_and_nolog.yml
@@ -0,0 +1,8 @@
+- hosts: testhost
+  gather_facts: false
+  tasks:
+    - name: no log filtering caused delegation to fail https://github.com/ansible/ansible/issues/43026
+      become: False
+      no_log: true
+      debug:
+      delegate_to: localhost
diff --git a/test/integration/targets/delegate_to/runme.sh b/test/integration/targets/delegate_to/runme.sh
index 38514c37b8..8d669df198 100755
--- a/test/integration/targets/delegate_to/runme.sh
+++ b/test/integration/targets/delegate_to/runme.sh
@@ -8,3 +8,5 @@ ANSIBLE_SSH_ARGS='-C -o ControlMaster=auto -o ControlPersist=60s -o UserKnownHos
 ansible-playbook test_loop_control.yml -v "$@"
 
 ansible-playbook test_delegate_to_loop_randomness.yml -v "$@"
+
+ansible-playbook delegate_and_nolog.yml -v "$@"