Acknowledgement returned by the facet retraction endpoint — DELETE
/api/relationships/{edge_handle}/facets/{property_id}.The retracted row's id, echoed. The row itself persists folded away and is never reused: a
re-assertion of the same address mints a fresh row with a fresh id.
{
"property_id": "05003a8a-8f3c-454b-8884-a906ec46f5f5"
}