Add test that imports three posts. Fix bug the test uncovered. We need to make a copy of the post in the importBatch loop before handing it off to asynchronous importPost call. Change-Id: Id8dea72b03dd3666dde97e977c921a8955e67392
Change-Id: I889d167a78ef0fba5ef2e9e3e884f594e151e940