Skip self._parent on dynamic, defer to grandparent for attr lookup (#38827)

* Skip self._parent on dynamic, defer to grandparent for attr lookup

* Revert _inheritable

* Add tests for include inheritance from static blocks

Fixes #38037 #36194

test/integration/targets/include_import/grandchild/block_include_tasks.yml

@@ -0,0 +1,2 @@
+- command: "true"
+  register: block_include_result

test/integration/targets/include_import/grandchild/import.yml

@@ -0,0 +1 @@
+- include_tasks: include_level_1.yml

test/integration/targets/include_import/grandchild/import_include_include_tasks.yml

@@ -0,0 +1,2 @@
+- command: "true"
+  register: import_include_include_result

test/integration/targets/include_import/grandchild/include_level_1.yml

@@ -0,0 +1 @@
+- include_tasks: import_include_include_tasks.yml

test/integration/targets/include_import/runme.sh

@@ -55,3 +55,7 @@ gen_task_files
 ANSIBLE_STRATEGY='linear' ansible-playbook test_copious_include_tasks.yml  -i ../../inventory "$@" --skip-tags never
 ANSIBLE_STRATEGY='free' ansible-playbook test_copious_include_tasks.yml  -i ../../inventory "$@" --skip-tags never
 rm -f tasks/hello/*.yml
+
+# Inlcuded tasks should inherit attrs from non-dynamic blocks in parent chain
+# https://github.com/ansible/ansible/pull/38827
+ANSIBLE_STRATEGY='linear' ansible-playbook test_grandparent_inheritance.yml -i ../../inventory "$@"

test/integration/targets/include_import/test_grandparent_inheritance.yml

@@ -0,0 +1,29 @@
+---
+- hosts: testhost
+  gather_facts: false
+  tasks:
+    - debug:
+        var: inventory_hostname
+
+    - name: Test included tasks inherit from block
+      check_mode: true
+      block:
+        - include_tasks: grandchild/block_include_tasks.yml
+
+    - debug:
+        var: block_include_result
+
+    - assert:
+        that:
+          - block_include_result is skipped
+
+    - name: Test included tasks inherit deeply from import
+      import_tasks: grandchild/import.yml
+      check_mode: true
+
+    - debug:
+        var: import_include_include_result
+
+    - assert:
+        that:
+          - import_include_include_result is skipped