new file mode 100644

@@ -0,0 +1,2 @@

+bugfixes:

+  - Fix using omit on play keywords (https://github.com/ansible/ansible/issues/48673)

@@ -366,7 +366,10 @@ class FieldAttributeBase(with_metaclass(BaseMeta, object)):

                 # if this evaluated to the omit value, set the value back to

                 # the default specified in the FieldAttribute and move on

                 if omit_value is not None and value == omit_value:

-                    setattr(self, name, attribute.default)

+                    if callable(attribute.default):

+                        setattr(self, name, attribute.default())

+                    else:

+                        setattr(self, name, attribute.default)

                     continue

                 # and make sure the attribute is of the type it should be

@@ -549,7 +552,10 @@ class FieldAttributeBase(with_metaclass(BaseMeta, object)):

             if name in data:

                 setattr(self, name, data[name])

             else:

-                setattr(self, name, attribute.default)

+                if callable(attribute.default):

+                    setattr(self, name, attribute.default())

+                else:

+                    setattr(self, name, attribute.default)

         # restore the UUID field

         setattr(self, '_uuid', data.get('uuid'))

new file mode 100644

@@ -0,0 +1,4 @@

+- hosts: localhost

+  serial: "{{ testing_omitted_variable | default(omit) }}"

+  tasks:

+    - debug:

new file mode 100644

@@ -0,0 +1 @@

+shippable/posix/group3

new file mode 100755

@@ -0,0 +1,5 @@

+#!/usr/bin/env bash

+

+set -eux

+

+ansible-playbook 48673.yml -i ../../inventory -v "$@"