`InvalidCastException` while executing `CreateCustomActions` for the `op_validator_set` action in version `v200010`

[area363]

• Block: https://9cscan.com/blocks/6398201
• Transaction: https://9cscan.com/tx/5d122993dd68bcd264da1651c921141ca892931124f190ee03460f01f32c5833
• Error stack trace when executing block #6398201 with v200010:

  System.InvalidCastException: Unable to cast object of type 'Bencodex.Types.Binary' to type 'Bencodex.Types.Integer'.
  at Bencodex.Types.Dictionary.GetValue[T](Byte[] name)
  at Libplanet.Consensus.Validator..ctor(Dictionary bencoded) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Consensus\Validator.cs:line 55
  at Libplanet.Consensus.Validator..ctor(IValue bencoded) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Consensus\Validator.cs:line 45
  at Nekoyume.Action.ValidatorSetOperate.LoadPlainValue(IValue plainValue) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\Lib9c\Action\ValidatorSetOperate.cs:line 146
  at Libplanet.Action.PolymorphicAction`1.LoadPlainValue(Dictionary plainValue) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Action\PolymorphicAction.cs:line 248
  at Libplanet.Action.PolymorphicAction`1.LoadPlainValue(IValue plainValue) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Action\PolymorphicAction.cs:line 255
  at Libplanet.Action.ActionEvaluator.CreateCustomActions(IActionTypeLoaderContext actionTypeLoaderContext, ITransaction tx)+MoveNext() in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Action\ActionEvaluator.cs:line 839
  at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items)
  at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source)
  at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
  at System.Collections.Immutable.ImmutableExtensions.FallbackWrapper`1.get_Count()
  at System.Collections.Immutable.ImmutableList`1.CreateRange(IEnumerable`1 items)
  at System.Collections.Immutable.ImmutableList`1.AddRange(IEnumerable`1 items)
  at System.Collections.Immutable.ImmutableList.CreateRange[T](IEnumerable`1 items)
  at Libplanet.Action.ActionEvaluator.EvaluateTx(IPreEvaluationBlockHeader blockHeader, ITransaction tx, IAccountStateDelta previousStates, Boolean rehearsal, ITrie previousBlockStatesTrie) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Action\ActionEvaluator.cs:line 623
  at Libplanet.Action.ActionEvaluator.EvaluateBlock(IPreEvaluationBlock block, IAccountStateDelta previousStates, ITrie previousBlockStatesTrie)+MoveNext() in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Action\ActionEvaluator.cs:line 578
  at System.Collections.Generic.LargeArrayBuilder`1.AddRange(IEnumerable`1 items)
  at System.Collections.Generic.EnumerableHelpers.ToArray[T](IEnumerable`1 source)
  at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
  at System.Collections.Immutable.ImmutableExtensions.FallbackWrapper`1.get_Count()
  at System.Collections.Immutable.ImmutableList`1.CreateRange(IEnumerable`1 items)
  at System.Collections.Immutable.ImmutableList`1.AddRange(IEnumerable`1 items)
  at System.Collections.Immutable.ImmutableList.ToImmutableList[TSource](IEnumerable`1 source)
  at Libplanet.Action.ActionEvaluator.Evaluate(IPreEvaluationBlock block) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Action\ActionEvaluator.cs:line 132
  at Libplanet.Blockchain.BlockChain`1.ExecuteActions(Block`1 block) in C:\Users\kidon\Desktop\NineChronicles.DataProvider\NineChronicles.Headless\Lib9c\.Libplanet\Libplanet\Blockchain\BlockChain.cs:line 935

• Full state tx status:

[area363]

Issue obsolete.