Fix TxIn parsing

Reviewed-on: #52

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.3.0]
+
+### Fixed
+
+- Parsing of `TxIn` for FFI
+
 ## [0.5.2.0]
 
 ### Added

src/ZcashHaskell/Types.hs

@@ -160,7 +160,7 @@ fromRawTxIn t = H.TxIn op (rti_script t) (rti_seq t)
         then H.nullOutPoint
         else H.OutPoint
                ((fromJust .
-                 H.hexToTxHash . E.decodeUtf8Lenient . rop_hash . rti_outpoint)
+                 H.hexToTxHash . toText . hexString . rop_hash . rti_outpoint)
                   t)
                (rop_n $ rti_outpoint t)