OptionalautoLand the results with no triage when this many candidates or fewer are new to the canvas — the deal a one-click pivot makes: no counts to read and nothing to narrow, so size decides. Deduped candidates do not count towards it; edge-only rows do, because they are rows an analyst would otherwise have been asked about.
Only consulted where the pivot left PivotDefinition.autoIngest unset. A pivot that declared it either way has already answered the question, and its answer holds however the run was started.
What a caller can say about one run beyond its origin and its narrowing.