Requisitions linked to an active Negotiation can still be updated at the requisition level

Requisitions that are already linked to an active Negotiation can still be updated at the requisition level using Withdraw & Edit.
By contrast, PO-linked requisitions automatically generate a controlled Change Order on the PO when edited, preserving the sourcing relationship.

Business Need:

• Business users would like requisitions already tied to a Negotiation to be locked against edits (similar to PO-linked requisitions) in order to prevent duplicate lines, orphaned negotiations, or confusion during sourcing.

Questions for Oracle:

1. We already found Oracle documentation and references confirming that requisitions tied to negotiations can still be edited, unlike PO-linked requisitions. Is this behavior considered “working as designed”?