rpc: Properly deserialize txs with witness before signing

src/rpc/rawtransaction.cpp

@@ -644,7 +644,7 @@ static UniValue combinerawtransaction(const JSONRPCRequest& request)
     std::vector<CMutableTransaction> txVariants(txs.size());
 
     for (unsigned int idx = 0; idx < txs.size(); idx++) {
-        if (!DecodeHexTx(txVariants[idx], txs[idx].get_str(), true)) {
+        if (!DecodeHexTx(txVariants[idx], txs[idx].get_str())) {
             throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed for tx %d", idx));
         }
     }
@@ -766,7 +766,7 @@ static UniValue signrawtransactionwithkey(const JSONRPCRequest& request)
     RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VARR, UniValue::VARR, UniValue::VSTR}, true);
 
     CMutableTransaction mtx;
-    if (!DecodeHexTx(mtx, request.params[0].get_str(), true)) {
+    if (!DecodeHexTx(mtx, request.params[0].get_str())) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }
 

src/wallet/rpcwallet.cpp

@@ -3229,7 +3229,7 @@ UniValue signrawtransactionwithwallet(const JSONRPCRequest& request)
     RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VARR, UniValue::VSTR}, true);
 
     CMutableTransaction mtx;
-    if (!DecodeHexTx(mtx, request.params[0].get_str(), true)) {
+    if (!DecodeHexTx(mtx, request.params[0].get_str())) {
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }