Interpret maxfeerate parameter and default fallback in reference fee …

…unit for sendrawtransaction

src/rpc/rawtransaction.cpp

@@ -967,6 +967,7 @@ static RPCHelpMan sendrawtransaction()
                                              DEFAULT_MAX_RAW_TX_FEE_RATE :
                                              CFeeRate(AmountFromValue(request.params[1]));
 
+    CAsset feeAsset = ::policyAsset;
     for (const auto& out : tx->vout) {
         // If we have a nonce, it could be a smuggled pubkey, or it could be a
         //   proper nonce produced by blinding. In the latter case, the value
@@ -975,10 +976,13 @@ static RPCHelpMan sendrawtransaction()
         if (!out.nNonce.IsNull() && out.nValue.IsExplicit()) {
             throw JSONRPCError(RPC_TRANSACTION_ERROR, "Transaction output has nonce, but is not blinded. Did you forget to call blindrawtransaction, or rawblindrawtransaction?");
         }
+        if (out.IsFee()) {
+            feeAsset = out.nAsset.GetAsset();
+        }
     }
 
     int64_t virtual_size = GetVirtualTransactionSize(*tx);
-    CAmount max_raw_tx_fee = max_raw_tx_fee_rate.GetFee(virtual_size);
+    CAmount max_raw_tx_fee = max_raw_tx_fee_rate.GetFee(virtual_size, feeAsset);
 
     std::string err_string;
     AssertLockNotHeld(cs_main);