[BUG]: Baggage auto-merge keys do not appear in graphql spans

[agdt3]

Tracer Version(s)

5.79.0

Node.js Version(s)

18.19.0

Bug Report

Hello,

I'm trying to pass some params from our access tokens into some downstream graphql spans (specifically graphql.execute). Currently creating a custom span with some tags just adds those at the express-level span and not the children. Based on this (https://docs.datadoghq.com/tracing/trace_collection/trace_context_propagation/?tab=java#adding-baggage-as-span-tags) my understanding is that setting certain baggage keys should get automatically merged into all downstream span tags, but I'm not seeing those tags or any related facets appear.

import tracer from './tracer';

const setTraceContext = ({ userId, tenantId }) => {
  // Using account.id for testing
  tracer.setBaggageItem('account.id', tenantId);
  if (userId) {
    tracer.setBaggageItem('user.id', userId);

    // This only works at the top-level express span
    tracer.setUser({
      id: userId,
      tenantId
    });
  }
};

graphql.execute Span result:

{"process_id":"12","language":"javascript","env":"dev","version":"7.32.0","ecs_task_arn":"arn:aws:ecs:us-east-1:669356653346:task/graphql-svcs/2a703844ba1f495ca4e538716e3c1bdc","component":"graphql","git":{"commit":{"sha":"***"},"repository_url":"***","repository":{"id":"***"}},"service":"apollo","runtime-id":"abb45271-17dd-4697-8bfd-da0dc7925779","graphql":{"operation":{"name":"getLabourRateGroupsByCompany","type":"query"}},"dd_resource_key":"arn:aws:ecs:us-east-1:669356653346:task/graphql-dev-svcs/2a703844ba1f495ca4e538716e3c1bdc","span":{"kind":"server"},"duration":4810223104}

Reproduction Code

No response

Error Logs

No response

Tracer Config

import tracer from 'dd-trace';

tracer.init();
tracer.use('graphql', {
  signature: true,
  source: true
});
tracer.use('pino', {});

export default tracer;

Operating System

No response

Bundling

Webpack