Closes #504: correct cumulative fields inheritance

test/test_hook_template.py

@@ -513,7 +513,7 @@ def test_host_templates_with_templates_no_check_command(self):
 
         # The host has some fields that were cumulated from its linked template
         self.assertEqual(set(rh[4]['tags']), set(['tag-1', 'tag-2', 'tag-3']))
-        self.assertEqual(rh[4]['customs'], {'key1': 'value1-y', 'key2': 'value2'})
+        self.assertEqual(rh[4]['customs'], {'key1': 'value1-x', 'key2': 'value2'})
         # Inherited check command is the one defined in the last template in the templates list!
         # Issue #504!
         self.assertEqual(rh[4]['check_command'], None)