Wrong export file while one of table column is set as 'Part of alternative primary key'

I found an issue during creating object export.

In the table Department I have set CustomProperty01 as Part of alternative primary key.

Export it as Transport of selected objects and dependencies and in the zip file I found the in the XML file department is missing Primary Key which causing issues in the importing.

Export file without alternative key

<Container>
   <BaseObject><Key>
  <Table Name="Department" Display="Identity Lifecycle" Key="32b3d2bb-65c3-4768-bd47-44f7566d40fa">
    <Prop Name="UID_Department">
      <Value>32b3d2bb-65c3-4768-bd47-44f7566d40fa</Value>
    </Prop>
  </Table>
</Key></BaseObject>
....
</Container>

Export file with set alternative primary key

<Container>
   <BaseObject><Key>
  <Table Name="Department" Display="Identity Lifecycle">
    <Prop Name="CustomProperty01">
      <Value />
    </Prop>
  </Table>
</Key></BaseObject>
....
</Container>

The same issue is with relation with parent department - using CustomProperty01 as reference instead of UID_Department

This was check on One Identity Manager version 8.2 and 8.2.1