JasonNS

[backend] Pipeline channel placeholders in formatted string cannot be substituted correctly

3

### Environment * How did you deploy Kubeflow Pipelines (KFP)? Kubeflow manifests standalone deployment ([ref](https://github.com/kubeflow/manifests/tree/v1.9.0-rc.0?tab=readme-ov-file#install-individual-components)) * KFP version: 2.2.0 * KFP SDK version: kfp 2.8.0 kfp-kubernetes 1.2.0 kfp-pipeline-spec 0.3.0 kfp-server-api...

ux minor, reported by qa ## Background Build: Staging Device: Chrome, Firefox on win 11, S21 FE (Android 12), iPhone 12 mini (iOS 16), Samsung note 9 (Android 12) ##...