Any bucket created through cloudformation will have `"LocationConstraint": null`, implying us-east-1, although in AWS CloudFormation the bucket's region will always match the template's region.
elif isinstance(resource, apigw_models.Resource):
            api_id = props['RestApiId']
            backend.apis[api_id].resources.pop(resource.id, None)
            backend.apis[api_id].resources[new_id] = resource
            resource.id = new_id
        elif isinstance(resource, apigw_models.Deployment):
            api_id = props['RestApiId']
            backend.apis[api_id].deployments.pop(resource['id'], None)
            backend.apis[api_id].deployments[new_id] = resource
            resource['id'] = new_id
        else:
            LOG.warning('Unexpected resource type when updating ID: %s' % type(resource))
    def update_physical_resource_id(resource):
        phys_res_id = getattr(resource, 'physical_resource_id', None)
        if not phys_res_id:
            if isinstance(resource, lambda_models.LambdaFunction):
                func_arn = aws_stack.lambda_function_arn(resource.function_name)
                resource.function_arn = resource.physical_resource_id = func_arn
            elif isinstance(resource, sfn_models.StateMachine):
                sm_arn = aws_stack.state_machine_arn(resource.name)
                resource.physical_resource_id = sm_arn
            elif isinstance(resource, service_models.StepFunctionsActivity):
                act_arn = aws_stack.stepfunctions_activity_arn(resource.params.get('Name'))
                resource.physical_resource_id = act_arn
            else:
                LOG.warning('Unable to determine physical_resource_id for resource %s' % type(resource))
    parse_and_create_resource_orig = parsing.parse_and_create_resource
    parsing.parse_and_create_resource = parse_and_create_resource
    
    def parse_output(output_logical_id, output_json, resources_map):