Handle sequence number bigger than byte range

Author: Seongjae Choi

core/transaction/mintAsset.go

@@ -134,7 +134,7 @@ func (t *MintAsset) Sign(secret primitives.H256, seq uint, fee primitives.U64) c
 }
 
 func (t MintAsset) ToEncodeObject() []interface{} {
-return []interface{}{byte(t.Seq()), t.Fee().ToEncodeObject(), t.NetworkID(), append(t.ActionToEncodeObject(), t.Approvals)}
+return []interface{}{t.Seq(), t.Fee().ToEncodeObject(), t.NetworkID(), append(t.ActionToEncodeObject(), t.Approvals)}
 }
 
 func (t MintAsset) UnsignedHash() primitives.H256 {

core/transaction/pay.go

@@ -35,7 +35,7 @@ func (p Pay) ActionToEncodeObject() []interface{} {
 }
 
 func (p Pay) ToEncodeObject() []interface{} {
-return []interface{}{byte(p.Seq()), p.Fee().ToEncodeObject(), p.NetworkID(), p.ActionToEncodeObject()}
+return []interface{}{p.Seq(), p.Fee().ToEncodeObject(), p.NetworkID(), p.ActionToEncodeObject()}
 }
 
 func (p Pay) ActionToJSON() interface{} {