snapshot: preserve custom field parity across forms timeline and pdf

backend/workflows/tests/test_offboarding_flow.py

@@ -4,7 +4,7 @@ from django.contrib.auth import get_user_model
 from django.test import TestCase
 
 from workflows.branding import get_company_email_domain
-from workflows.models import EmployeeProfile, OffboardingRequest
+from workflows.models import EmployeeProfile, FormCustomFieldConfig, OffboardingRequest
 
 
 class OffboardingFlowTests(TestCase):
@@ -59,3 +59,37 @@ class OffboardingFlowTests(TestCase):
         self.assertEqual(obj.requested_by_email, f'operator@{self.company_domain}')
         self.assertEqual(obj.requested_by_name, 'Nina Admin')
         mock_delay.assert_called_once_with(obj.id)
+
+    @patch('workflows.views.process_offboarding_request.delay')
+    def test_offboarding_custom_field_is_saved(self, mock_delay):
+        FormCustomFieldConfig.objects.create(
+            form_type='offboarding',
+            field_key='return_comment',
+            section_key='abschluss',
+            sort_order=0,
+            field_type='textarea',
+            is_active=True,
+            is_required=False,
+            label='Rückgabehinweis',
+        )
+
+        payload = {
+            'full_name': self.profile.full_name,
+            'work_email': self.profile.work_email,
+            'department': self.profile.department,
+            'job_title': self.profile.job_title,
+            'last_working_day': '2026-12-31',
+            'notes': 'Bitte Accounts sperren.',
+            'custom__return_comment': 'Abholung durch IT am Freitag.',
+        }
+
+        response = self.client.post(
+            f'/offboarding/new/?profile={self.profile.id}',
+            payload,
+            HTTP_HOST='localhost',
+        )
+
+        self.assertEqual(response.status_code, 302)
+        obj = OffboardingRequest.objects.get(work_email=self.profile.work_email)
+        self.assertEqual(obj.custom_field_values, {'return_comment': 'Abholung durch IT am Freitag.'})
+        mock_delay.assert_called_once_with(obj.id)