Follow-up issue for https://jira.ez.no/browse/EZP-24446 and https://jira.ez.no/browse/EZP-24447
The field for root locaton id is used for manual entry at the moment. When the UDW is ready, it should be hidden (it will still be used behind the scenes).

See https://github.com/ezsystems/repository-forms/pull/31/files#diff-3119d44a09ef8fe82eb24e29698db1f6R22
and https://github.com/ezsystems/repository-forms/blob/d41c3eb522fc688ca66c215a2ce8672f0b89dabd/lib/FieldType/Mapper/RelationListFormMapper.php#L54

CC mhyndle@gmail.com