def AddWxPage(self, page):
        if page.IsOpen():
            self.AddPage(page, page.GetTitle())
            index = self.GetPageIndex(page)
            if not page.GetEnabled():
                self.EnableTab(index, False)
            if not page.GetClosable():
                self.SetCloseButton(index, False)
        else:
            page.Show(False)
            self._hidden_pages[page] = self.GetPageCount()
LoadUpdateAction migration should not create a CaseIndex without parent_tag
dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/wx/wx_notebook.py/wxDocumentNotebook.AddWxPage--crossover with--dataset/ETHPy150Open dimagi/commcare-hq/corehq/apps/app_manager/tests/test_extension_case.py/LoadUpdateActionMigrationTests.test_advanced_action_no_parent_tag