message: Use visiblePostables directly to calculate a Milestone's completeness.
diff: @@ -17,11 +17,7 @@ export class Milestone {
  this.postables.invoke('setWorkflow', wf);
  }
  get isComplete() {
  - return this.postables
  - .filter((p) => {
  - return !this.#excludedPostables.has(p);
  - })
  - .isEvery('isComplete', true);
  + return this.visiblePostables.isEvery('isComplete', true);
  }
  completedDetail;
  