Limit GBT - calculate purged tx cpfp on demand

backend/src/api/websocket-handler.ts

@@ -33,6 +33,7 @@ interface AddressTransactions {
   removed: MempoolTransactionExtended[],
 }
 import bitcoinSecondClient from './bitcoin/bitcoin-second-client';
+import { calculateCpfp } from './cpfp';
 
 // valid 'want' subscriptions
 const wantable = [
@@ -702,6 +703,9 @@ class WebsocketHandler {
               accelerated: mempoolTx.acceleration || undefined,
             }
           };
+          if (!mempoolTx.cpfpChecked) {
+            calculateCpfp(mempoolTx, newMempool);
+          }
           if (mempoolTx.cpfpDirty) {
             positionData['cpfp'] = {
               ancestors: mempoolTx.ancestors,