Update the test for page modeladmin

wagtail/contrib/modeladmin/tests/test_page_modeladmin.py

@@ -119,11 +119,11 @@ class TestInspectView(TestCase, WagtailTestUtils):
 
     def test_title_present(self):
         """
-        The page title should appear twice. Once in the header, and once
-        more in the field listing
+        The page title should appear three times. Once in the header, and two times
+        in the field listing (as the actual title and as the draft title)
         """
         response = self.get(4)
-        self.assertContains(response, 'Christmas', 2)
+        self.assertContains(response, 'Christmas', 3)
 
     def test_manytomany_output(self):
         """