I know, a convoluted topic title.

I have a custom DataType called "myPicker" using radiobutton list as its render control and with 3 prevalues: "Option 1", "Option 2", "Option 3". The ID values are system assigned, currently 32, 33, 34

I have a document type ("Item Page") with a tab and a property using this DataType

I have a series of pages in my site, based on this document type. They live, structurally, deeper in the site. eg:

home
-- Section Page 1
-- Section Page 2
-- -- Item Page 1
-- -- Item Page 2

When I courier Section Page 1 and all of its children to from staging to prod, the ID values of the "myPicker" change (to, like, 111, 112, 113), but that's ok because the references in the Item Pages are updated as well (eg, if "Option 1" was selected in staging, it's still selected in prod)

*HOWEVER*

If I later courier only Item Page 2 from staging to prod, the ID values are again updated (to, like, 114, 115, 116), Item Page 2 has its reference correctly migrated, but Item Page 1 has now been orphaned and no longer references the correct item in myPicker.

*FURTHERMORE*

If I transfer any other site page (eg "Section Page 1"), the IDs are again updated, and *ALL* Item Pages lose their references.

My current workaround is, after *ANY* courier of documents, to re-courier all documents that use the myPicker data type. This is not sustainable, because of the frequency and volume of pages to be Couriered. How can I transfer documents without having to then re-transfer all documents of a certain type?

I think this is a bug, or is there something I'm doing wrong?

Thanks in advance

Jonathan