Update the admin interface to use the draft_title

wagtail/wagtailcore/models.py

@@ -670,7 +670,7 @@ class Page(six.with_metaclass(PageBase, AbstractPage, index.Indexed, Clusterable
         """
         Return the title for this page as it should appear in the admin backend.
         """
-        return self.title
+        return self.draft_title
 
     def save_revision(self, user=None, submitted_for_moderation=False, approved_go_live_at=None, changed=True):
         self.full_clean()

wagtail/wagtailcore/tests/test_page_model.py

@@ -88,7 +88,7 @@ class TestValidation(TestCase):
 
     def test_get_admin_display_title(self):
         homepage = Page.objects.get(url_path='/home/')
-        self.assertEqual(homepage.title, homepage.get_admin_display_title())
+        self.assertEqual(homepage.draft_title, homepage.get_admin_display_title())
 
 
 @override_settings(ALLOWED_HOSTS=['localhost', 'events.example.com', 'about.example.com', 'unknown.site.com'])