Check correct model for organizer
Seems like this https://gitlab.prozorro.sale/prozorro-sale/procedure/-/blob/master/src/prozorro_sale/procedure/models/schema/landRental.yml#L479 field is the same as base.Organization
Please check if this so and replace
$ref: '#/components/schemas/base.SellingEntityIdentifier' with $ref: '#/components/schemas/base.Organization' and remove extra fields
Edited by dmitry.mashoshin