type `TxnGroupLockNack`

`common.TxnGroupLockNack`

Field	Type	Description
ciris `repeated`	string	Commitment IRIs for a group that were not able to be reserved

{
  "ciris": [
    "UETR#GROUP/COMMITMENT",
    "UETR#GROUP/COMMITMENT",
    "UETR#GROUP/COMMITMENT"
  ]
}