The wildcard will reliably resolve to the appropriate lock status for the source project when utilized within a Duplicate_Project stream.
For example:
Project is locked:
LOCKED
HOUSEKEEPER
RESTORED
ARCHIVED
Project is unlocked: null
A project can be locked either because it is currently being accessed by a user or its status has been set using the Project Status Update Action node.
This wildcard is exclusive to the Duplicate_Project stream.