change the way to get lock tx

plugin/dapp/evmxgo/executor/exec.go

@@ -67,10 +67,11 @@ func (e *evmxgo) Exec_Mint(payload *evmxgotypes.EvmxgoMint, tx *types.Transactio
 	if nil != err {
 		return nil, err
 	}
-	if len(txGroup) < 2 {
+	if len(txGroup) < 2 || index == 0 {
 		return nil, errors.New("Mint tx should be included in lock tx group")
 	}
-	return action.mint(payload, txGroup[0])
+	txs := e.GetTxs()
+	return action.mint(payload, txs[index-1])
 }
 
 func (e *evmxgo) Exec_Burn(payload *evmxgotypes.EvmxgoBurn, tx *types.Transaction, index int) (*types.Receipt, error) {

plugin/dapp/evmxgo/types/evmxgo.pb.go

@@ -166,8 +166,8 @@ type EvmxgoMint struct {
 
 	Symbol      string `protobuf:"bytes,1,opt,name=symbol,proto3" json:"symbol,omitempty"`
 	Amount      int64  `protobuf:"varint,2,opt,name=amount,proto3" json:"amount,omitempty"`
-	Address string `protobuf:"bytes,3,opt,name=address,proto3" json:"address,omitempty"`
-	Token   string `protobuf:"bytes,4,opt,name=token,proto3" json:"token,omitempty"`
+	BridgeToken string `protobuf:"bytes,3,opt,name=bridgeToken,proto3" json:"bridgeToken,omitempty"`
+	Recipient   string `protobuf:"bytes,4,opt,name=recipient,proto3" json:"recipient,omitempty"`
 }
 
 func (x *EvmxgoMint) Reset() {
@@ -216,16 +216,16 @@ func (x *EvmxgoMint) GetAmount() int64 {
 	return 0
 }
 
-func (x *EvmxgoMint) GetAddress() string {
+func (x *EvmxgoMint) GetBridgeToken() string {
 	if x != nil {
-		return x.Address
+		return x.BridgeToken
 	}
 	return ""
 }
 
-func (x *EvmxgoMint) GetToken() string {
+func (x *EvmxgoMint) GetRecipient() string {
 	if x != nil {
-		return x.Token
+		return x.Recipient
 	}
 	return ""
 }
@@ -1323,14 +1323,15 @@ var file_evmxgo_proto_rawDesc = []byte{
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