schemas/vegbien.sql: specimenreplicate: Made plantobservation_id optional again, since indirect vouchers do create specimenreplicates without a parent plantobservation. schemas/vegbien.ERD.mwb: Fixed lines.
schemas/vegbien.sql: specimenreplicate: Made plantobservation_id optional again, since indirect vouchers do create specimenreplicates without a parent plantobservation. schemas/vegbien.ERD.mwb: Fixed lines.