he said it's an unsupported flag, but doesn't know the number.

Unlike earlier versions of SQL Server, in which dependencies were tracked by ID, dependencies are now tracked by name. This means that the Database Engine tracks dependency information between two entities even if the referenced entity does not exist at the time the referencing entity is created. This circumstance can occur because of deferred name resolution. For example, a stored procedure that references a table can be successfully created, but not executed, even if the referenced table does not exist in the database. The Database Engine records the dependency between the procedure and table, however, an ID for the table cannot be recorded because the object does not yet exist. If the table is later created, the ID of the table is returned with the other dependency information.