The assigner's state and verb placement are assignments, with its events, tools, views and every caller; the assigner copies the retired state at its start (issue 1966)

Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i

modules/mesh-grants/internal/buscompose/fixtures_test.go

@@ -119,7 +119,7 @@ func ComposedFor(f UserListFixture) (string, []string, error) {
 
 // MembershipsFor is every membership a fixture's records issue, by `<node>.<module>`, as the composer makes them.
 func MembershipsFor(f UserListFixture) map[string]Membership {
-	where := PlacementsOf(f.Records, f.Records.Interchangeable)
+	where := AssignmentsOf(f.Records, f.Records.Interchangeable)
 	out := map[string]Membership{}
 	for node, ds := range f.Records.Assigned {
 		for _, d := range ds {