Entity Framework object graph deletion with Breeze

Question

I am encountering a recurring problem that just makes no sense, and hoping someone (in the Breeze team?) can shed some light.

The following model illustrates the ent

Answer 1

That has nothing to do with Breeze.. The originating message is from Entity Framework.. inside BusUnitDimension Model update BusUnitId property to:

 public Nullable BusUnitId { get; set; }

Notice the Nullable struct..