Just for the record, a workaround I used was updating Postgres directly like:
UPDATE maasserver_node SET hardware_uuid=NULL WHERE hardware_uuid='03000200-0400-0500-0006-000700080009';
Just for the record, a workaround I used was updating Postgres directly like:
UPDATE maasserver_node SET hardware_uuid=NULL WHERE hardware_ uuid='03000200- 0400-0500- 0006-0007000800 09';