Field Value Attribute (FVA) fields cannot reference Issue Backed Pick List (IBPL) fields. That eliminates the possibility to use IBPLs in the shared node of the Document Model, and consequently eliminates the Share/Reuse functionality for IBPLs.
IBPL field cannot be treated as a significant edit field in a Document content item.
Request to add both functionalities to IBPLs.
This is documented as enhancement RFC 104455 in the Document - CS84678