diff --git a/awx/main/scheduler/task_manager.py b/awx/main/scheduler/task_manager.py
index 70b2655eb5..4069527e68 100644
--- a/awx/main/scheduler/task_manager.py
+++ b/awx/main/scheduler/task_manager.py
@@ -667,9 +667,7 @@ class TaskManager(TaskBase):
                     )
             if not found_acceptable_queue:
                 self.task_needs_capacity(task, tasks_to_update_job_explanation)
-        audit_bulk_model_instances(
-            tasks_to_update_job_explanation, operation='bulk_update', update_fields=['job_explanation']
-        )
+        audit_bulk_model_instances(tasks_to_update_job_explanation, operation='bulk_update', update_fields=['job_explanation'])
         UnifiedJob.objects.bulk_update(tasks_to_update_job_explanation, ['job_explanation'])
 
     def task_needs_capacity(self, task, tasks_to_update_job_explanation):
diff --git a/awx/main/tests/unit/utils/test_validation_bypass_observability.py b/awx/main/tests/unit/utils/test_validation_bypass_observability.py
index 7948469e61..270a67a457 100644
--- a/awx/main/tests/unit/utils/test_validation_bypass_observability.py
+++ b/awx/main/tests/unit/utils/test_validation_bypass_observability.py
@@ -120,7 +120,7 @@ def test_task_manager_audits_before_job_explanation_bulk_update():
     """Regression: scheduler must not bulk_update job_explanation without audit."""
     task_manager_py = Path(__file__).resolve().parents[3] / 'scheduler' / 'task_manager.py'
     source = task_manager_py.read_text()
-    audit_marker = "audit_bulk_model_instances(\n            tasks_to_update_job_explanation, operation='bulk_update', update_fields=['job_explanation']"
+    audit_marker = "audit_bulk_model_instances(tasks_to_update_job_explanation, operation='bulk_update', update_fields=['job_explanation'])"
     bulk_marker = "UnifiedJob.objects.bulk_update(tasks_to_update_job_explanation, ['job_explanation'])"
     assert audit_marker in source
     assert bulk_marker in source
diff --git a/requirements/requirements_git.txt b/requirements/requirements_git.txt
index 196760847a..7f2eca2676 100644
--- a/requirements/requirements_git.txt
+++ b/requirements/requirements_git.txt
@@ -20,5 +20,6 @@
 certifi @ git+https://github.com/ansible/system-certifi.git@devel
 ansible-runner @ git+https://github.com/ansible/ansible-runner.git@devel
 awx-plugins-core[credentials-github-app] @ git+https://github.com/ansible/awx-plugins.git@devel
-django-ansible-base[feature-flags,jwt-consumer,rbac,resource-registry,rest-filters] @ git+https://github.com/ansible/django-ansible-base@devel
+# AAP-86051: bulk_validation_audit + validation bypass observability (django-ansible-base#1147); revert to @devel after merge
+django-ansible-base[feature-flags,jwt-consumer,rbac,resource-registry,rest-filters] @ git+https://github.com/vidyanambiar/django-ansible-base@d9f99d6bf0286d444aa67a00f6b06339e166bdce
 awx-plugins-interfaces @ git+https://github.com/ansible/awx_plugins.interfaces.git