assign's denominator is the identities the user has ruled on, and it
reads Cluster::person to find them. Master's "Let a name hold a group
together" widened what sets that field: a confirmation, a name, or an
ignore, where before it was a confirmation alone.
The behaviour is right either way — a named person is exactly the
identity a suggestion should be discounted against — but the module note
and faces.md §9.1 both said "a confirmation", which is now too narrow.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>