Updated P2PKH Builder fromScript() constructor

- The fromScript() constructor did not previously rebuild the internal address, because we lacked a Address.fromPubkeyHash(). Fixed now.

Author: Stephan February

lib/src/transaction/p2pkh_builder.dart

@@ -9,18 +9,20 @@ class P2PKHLockBuilder extends LockingScriptBuilder {
 
  Address? address;
  List<int>? pubkeyHash;
+ NetworkType? networkType;
 
  P2PKHLockBuilder.fromAddress(Address address){
  this.address = address;
+ this.networkType = address.networkType;
  pubkeyHash = HEX.decode(address.pubkeyHash160);
  }
 
- P2PKHLockBuilder.fromPublicKey(SVPublicKey publicKey, {NetworkType networkType = NetworkType.MAIN}){
- this.address = publicKey.toAddress(networkType);
+ P2PKHLockBuilder.fromPublicKey(SVPublicKey publicKey, {this.networkType = NetworkType.MAIN}){
+ this.address = publicKey.toAddress(networkType ?? NetworkType.MAIN);
  pubkeyHash = HEX.decode(address!.pubkeyHash160);
  }
 
- P2PKHLockBuilder.fromScript(SVScript script) : super.fromScript(script);
+ P2PKHLockBuilder.fromScript(SVScript script, {this.networkType = NetworkType.MAIN}) : super.fromScript(script);
 
  @override
  SVScript getScriptPubkey() {
@@ -60,6 +62,7 @@ class P2PKHLockBuilder extends LockingScriptBuilder {
  }
 
  pubkeyHash = chunkList[2].buf;
+ address = Address.fromPubkeyHash(HEX.encode(pubkeyHash ?? []), networkType ?? NetworkType.MAIN);
  }
  }