A list which has a "text:continue-list" attribute does not need to have an "xml:id" attribute itself, or?
Please remove the check for xmlId here in the condition and fix `applyContinuedNumberingById` to fallback to create and set an xml:id attribute as needed. Might also be an idea to use a custom webodf attribute for suich cases, so it gets dropped on writing on export. But that might complicate the rule creation.