commit d792c63
Author: Weiqun Zhang <[email protected]>
Date:   Wed Sep 11 10:07:00 2024 -0500

    Simplify cache cleanup actions (AMReX-Fluids#129)

    In our old approach, a workflow file contains a job that uploads the PR
    number as an artifact. While the PR is still open, the workflow_run
    triggered by it will download the artifact and use the information to
    clean up all except the last used cache associated with that original
    workflow. When a PR is merged or closed, there will be a post-pr
    workflow that uploads the PR number as an artifact and triggers a
    workflow_run that clean up all caches associated with the PR. The reason
    we did it this way was in the cache cleanup workflows, we did not find
    an easy way to get the number of the PR triggering them. This is not
    convenient because we have to add jobs uploading artifacts to workflow
    files.

    After some experiments, we have found a reliable way to find the PR
    number without using artifacts. The workflow_run's payload always
    contains the head SHA of the commit that triggers it, whether the PR
    comes from a fork or not. We can then use `gh pr list` to search for
    that head and obtain the PR number.

commit a007c21
Author: Candace Gilet <[email protected]>
Date:   Wed Sep 11 16:57:56 2024 +0200

    Fix case of multiple tracers with default initial conditions. Issue (AMReX-Fluids#132)

    introduced in PR#131