InconsistentKeys error being returned where DuplicateKeys is expected

Creating this issue as requested in forum thread: https://discuss.daml.com/t/2481/

When repeatedly exercising a choice with the below logic, an InconsistentKeys error is returned by the ledger API, whereas it seems like the correct error would be DuplicateKeys.

Please note, repeated commands are sent with a delay to ensure there is no race. There are no concurrent transactions when this error is produced.

template Vendor
 with
   networkOwner: Party
   vendor: Party
   vendorId: Text
 where
   signatory networkOwner
   observer vendor

   key (networkOwner, vendorId): (Party, Text)
   maintainer key._1

   controller networkOwner can
     nonconsuming RegisterProduct: (Optional (ContractId Client), ContractId Product)
       with productInfo: ProductInformation; clientInfo: ClientInformation
       do
         clientCid <- lookupByKey @Client (clientKey)
         productCid <- lookupByKey @Product (productKey)

         newClient <- case clientCid of
            None -> do
                exerciseByKey @ClientList (clientListKey) AddClients with newClients = [clientInfo]
                case clientInfo.clientType of
                  FIRSTTYPE -> do 
                      newClient <- create Client with ...
                      return (Some newClient)
                  SECONDTYPE -> do return None
            Some clientCid -> do
                client <- fetch clientCid
                archive clientCid
                newClient <- create client with products = dedup (productInfo :: client.products) 
                return (Some newClient)
 
        product <- create Product with ...

        return (newClient, product)

[LAshenhurst]

Hi @cocreature apologies for the delayed reply. Yes, this seems resolved now. Thanks for following up!

[cocreature]

Hi @LAshenhurst, have you been able to verify that this fixes your issue? On our side, we are unable to reproduce this issue with the fix in 1.13.0 or anything later.