Issue Summary

When creating business events like Novations/Splits/Terminations a ClosedState object is created on the terminated TradeState.
The Create_BusinessEvent [cdm.event.common.func] function calls for the Create_TradeState [cdm.event.common.func] function to create the closed state

And as we can see here the activityDate is set to empty

But since the cardinality of activityDate is required (1..1)

All Terminated TradeState is created with a validation error

Steps to Reproduce

1. Creating a standard Termination
   Create an Instruction → primitiveInstruction → quantityChange using func Create_TerminationInstruction
   then create a BusinessEvent using Create_BusinessEvent

2. Creating Termination from Novation
   Create a SplitInstruction → breakdown → split → breakdown using func Create_TerminationInstruction,
   then create a BusinessEvent using Create_BusinessEvent

Expected Behaviour

Standard Termination - closedState should contain activityDate

Novation - closedState should contain activityDate

Actual Behaviour

Standard Termination - closedState -> activityDate is missing

Novation - closedState -> activityDate is missing

Compatibility

All versions of CDM 5, 6 & 7 have this incomplete mapping
[Create_TradeState in cdm.event.common.func]

Release

CDM 5x, 6x, 7x

Additional Context

No response