fix: add missing end field (#34880)

* fix: add missing end field

* fix: lint and test errors

cms/djangoapps/contentstore/tests/test_course_create_rerun.py

@@ -104,10 +104,9 @@ class TestCourseListing(ModuleStoreTestCase):
         dest_course_key = CourseKey.from_string(data['destination_course_key'])
 
         self.assertEqual(dest_course_key.run, 'copy')
-        source_course = self.store.get_course(self.source_course_key)
         dest_course = self.store.get_course(dest_course_key)
         self.assertEqual(dest_course.start, CourseFields.start.default)
-        self.assertEqual(dest_course.end, source_course.end)
+        self.assertEqual(dest_course.end, None)
         self.assertEqual(dest_course.enrollment_start, None)
         self.assertEqual(dest_course.enrollment_end, None)
         course_orgs = get_course_organizations(dest_course_key)

cms/djangoapps/contentstore/views/course.py

@@ -878,6 +878,7 @@ def _create_or_rerun_course(request):
         display_name = request.json.get('display_name')
         # force the start date for reruns and allow us to override start via the client
         start = request.json.get('start', CourseFields.start.default)
+        end = request.json.get('end', CourseFields.end.default)
         run = request.json.get('run')
         has_course_creator_role = is_content_creator(request.user, org)
 
@@ -892,7 +893,7 @@ def _create_or_rerun_course(request):
                     status=400
                 )
 
-        fields = {'start': start}
+        fields = {'start': start, 'end': end}
         if display_name is not None:
             fields['display_name'] = display_name