Using node:slim container hitting Docker pull rate limit

[adrabent]

Dear developers,

I encounter the following issue with cwltool as well as toil-cwl-runner when nodejs is not available on the compute nodes when using Singularity. For every single workflow/step call the command singularity pull --force docker://node:slim is executed although the container is available in the Singularity pull directory or cache. If there are many steps in a workflow the docker pull rate limit is easily hit. Is this intended behaviour?

Kind regards,
Alex