tw pipelines update deletes existing pipeline labels

[drpatelh]

Summary

If a pipeline already contains labels in the Launchpad these are deleted when running tw pipelines update.

Steps to reproduce

1. Add a new pipeline to the Launchpad with a label

tw \
    pipelines \
    add \
    --name=test-hello-world \
    --workspace=<WORKSPACE_NAME> \
    --revision=master \
    --labels=hello-world \
    https://github.com/nextflow-io/hello

The hello-world label is clearly visible in the image below after adding the pipeline.

2. Update the "revision" to another branch on the repo

tw \
    pipelines \
    update \
    --name=test-hello-world \
    --workspace=<WORKSPACE_NAME> \
    --revision=testing

The hello-world label is no longer visible in the image below after updating the pipeline.

[canny]

This issue has been linked to a Canny post: Tower CLI update command cannot add labels 🎉