added NewRedundantRelayDecorator

app/ante.go

@@ -9,11 +9,14 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth/ante"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	transfertypes "github.com/cosmos/ibc-go/v5/modules/apps/transfer/types"
+	ibcante "github.com/cosmos/ibc-go/v5/modules/core/ante"
+	ibckeeper "github.com/cosmos/ibc-go/v5/modules/core/keeper"
 )
 
 type HandlerOptions struct {
 	ante.HandlerOptions
 	tokenfactorykeeper tokenfactory.Keeper
+	IBCKeeper          *ibckeeper.Keeper
 }
 
 type IsPausedDecorator struct {
@@ -114,6 +117,7 @@ func NewAnteHandler(options HandlerOptions) (sdk.AnteHandler, error) {
 		ante.NewSigGasConsumeDecorator(options.AccountKeeper, sigGasConsumer),
 		ante.NewSigVerificationDecorator(options.AccountKeeper, options.SignModeHandler),
 		ante.NewIncrementSequenceDecorator(options.AccountKeeper),
+		ibcante.NewRedundantRelayDecorator(options.IBCKeeper),
 	}
 	return sdk.ChainAnteDecorators(anteDecorators...), nil