ResourceErasureSurvey

The read-only survey. plan is None exactly when the resource was already erased when the
survey began (the short-circuit); already_erased also reads true when an act lands between
that read and the plan, and then the plan is present.

{
    "already_erased": true,
    "plan": null,
    "resource": "d008879e-b5d9-47da-af4e-3c8f40b7c9ee"
}