def replaceChild(self, newChild, oldChild):
        raise xml.dom.HierarchyRequestErr(
            self.tagName + " nodes do not have children")
call center case owner should not change on sync
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/tablib-0.10.0/tablib/packages/odf/element.py/Childless.replaceChild--crossover with--dataset/ETHPy150Open dimagi/commcare-hq/corehq/apps/callcenter/tests/test_utils.py/CallCenterUtilsTests.test_call_center_not_default_case_owner