Revert "Revert "Fix dex loan token burns (#1100)" (#1193)"

This reverts commit 3772421.
Revert the revert to maintain consistency with v2.7.0

src/masternodes/rpc_accounts.cpp

@@ -1779,6 +1779,8 @@ UniValue getburninfo(const JSONRPCRequest& request) {
 
     UniValue dfipaybacktokens{UniValue::VARR};
 
+    LOCK(cs_main);
+
     auto calcBurn = [&](AccountHistoryKey const & key, CLazySerialize<AccountHistoryValue> valueLazy) -> bool
     {
         const auto & value = valueLazy.get();
@@ -1822,7 +1824,11 @@ UniValue getburninfo(const JSONRPCRequest& request) {
         if (value.category == uint8_t(CustomTxType::PoolSwap)
         ||  value.category == uint8_t(CustomTxType::PoolSwapV2)) {
             for (auto const & diff : value.diff) {
-                dexfeeburn.Add({diff.first, diff.second});
+                if (pcustomcsview->GetLoanTokenByID(diff.first)) {
+                    dexfeeburn.Add({diff.first, diff.second});
+                } else {
+                    burntTokens.Add({diff.first, diff.second});
+                }
             }
             return true;
         }
@@ -1848,8 +1854,6 @@ UniValue getburninfo(const JSONRPCRequest& request) {
     result.pushKV("paybackburn", ValueFromAmount(paybackFee));
     result.pushKV("dexfeetokens", AmountsToJSON(dexfeeburn.balances));
 
-    LOCK(cs_main);
-
     if (auto attributes = pcustomcsview->GetAttributes()) {
         CDataStructureV0 liveKey{AttributeTypes::Live, ParamIDs::Economy, EconomyKeys::PaybackDFITokens};
         auto tokenBalances = attributes->GetValue(liveKey, CBalances{});