fixed test_content_merge_extra_change test
fixed test_content_merge_extra_change test

darvelo/chime,darvelo/chime,chimecms/chime,darvelo/chime,chimecms/chime,yudiutomo/chime,darvelo/chime,yudiutomo/chime,chimecms/chime,darvelo/chime,yudiutomo/chime,chimecms/chime,yudiutomo/chime,yudiutomo/chime,chimecms/chime