Set the boundary of a farm already in the record, as boundary (GeoJSON Polygon or MultiPolygon) or as fields to join into one farm (see eudr_create_farm). It becomes the farm's confirmed boundary, recorded as set by this agent credential, and what follows runs at once: the country from where the land lies, the forest record warmed, the land check. This writes to the organisation's record, and REPLACES any boundary the farm already had: the previous outline stops being the farm's boundary, and because the boundary decides which land is checked, the compliance answers and the area derived from it change with it. The superseded outline is kept in the farm's history and can be read back, but this call does not undo on its own — confirm with the user before overwriting a boundary somebody else set.