record name changes with the scope

Author: AbhiPrasad

packages/hub/src/scope.ts

@@ -29,6 +29,7 @@ import {
   isThenable,
   logger,
   SyncPromise,
+  timestampWithMs,
 } from '@sentry/utils';
 
 import { updateSession } from './session';
@@ -466,6 +467,23 @@ export class Scope implements ScopeInterface {
     }
     if (this._transactionName) {
       event.transaction = this._transactionName;
+      const transactionInfo = event.transaction_info;
+      if (transactionInfo) {
+        const source = 'custom';
+        event.transaction_info = {
+          ...transactionInfo,
+          source,
+          name_changes: [
+            ...transactionInfo.name_changes,
+            {
+              name: this._transactionName,
+              source,
+              timestamp: timestampWithMs(),
+              propagations: transactionInfo.num_propagations,
+            },
+          ],
+        };
+      }
     }
 
     // We want to set the trace context for normal events only if there isn't already