Using Expression Builder to default a specific date

Summary:

How do I get around this particular quark in expression builder?
- "You cannot enter literal values as date or timestamp values in expressions."

Content:

In the FCGL.Projects.nt I'm trying to set it up so that active projects always have a default end date of 12/31/2099. (I'm using the FCGL.End Date property which is data type = date)

In the end date converter, it won't let me set a specific date (and if I'm reading the guide correctly, this is by design).

So what I've done is set the default value of the FCGL.End Date on the FCGL.Projects.nt to be 12/31/2099. Then I cleared out the active status project end dates in FCGL so it would default to this value.