Respect active stake gating in carrot coinbase

src/cryptonote_core/cryptonote_tx_utils.cpp

@@ -498,7 +498,7 @@ namespace cryptonote
         CHECK_AND_ASSERT_THROW_MES(destination.payment_id == carrot::null_payment_id,
                                    "make_single_enote_carrot_coinbase_transaction_v1: integrated addresses are not allowed in miner transactions");
 
-        uint64_t stake_reward = block_reward / 5;
+        const uint64_t stake_reward = has_active_stakes ? (block_reward / 5) : 0;
 
         const carrot::CarrotPaymentProposalV1 payment_proposal{
           .destination = destination,
@@ -543,6 +543,7 @@ namespace cryptonote
         tx = carrot::store_carrot_to_coinbase_transaction_v1(enotes, extra_nonce, cryptonote::transaction_type::MINER, height);
         tx.version = (hard_fork_version >= HF_VERSION_ENABLE_TOKENS) ? TRANSACTION_VERSION_ENABLE_TOKENS : TRANSACTION_VERSION_CARROT;
         tx.amount_burnt = stake_reward;
+        MERROR("construct_miner_tx: carrot branch final height=" << height << ", has_active_stakes=" << has_active_stakes << ", block_reward=" << block_reward << ", amount_burnt=" << tx.amount_burnt << ", miner_amount=" << payment_proposal.amount);
         tx.invalidate_hashes();
       }
       catch (const std::exception &e)