Jobs scheduled with Job Scheduler are not respecting group rate limit config

[vishuvig]

Hi, we're seeing an issue with jobs enqueued using the job scheduler are not respecting the group rate limit config.

Code snippet to help describe the setup:

const generalPurposeQueue = newQueuePro("general-purpose", { connection });

await generalPurposeQueue.setGroupRateLimit("job-with-schedule-group", 1, 100000); // once every 100 seconds
await generalPurposeQueue.setGroupRateLimit("job-without-schedule-group", 1, 100000); // once every 100 seconds

await generalPurposeQueue.upsertJobScheduler(
  'job-scheduler',
  {
    every: 20000 // every 20 seconds
  },
  {
    name: 'job-with-schedule',
    opts: {
      group: {
        id: "job-with-schedule-group"
      }
    }
  }
);

The handler for the job-with-schedule job is fairly simple and just enqueues a new job:

...
await generalPurposeQueue.add(
  "job-without-schedule",
  {},
  {
    group: {
      id: "job-without-schedule-group"
    }
  }
);
...

Expected Behaviour

Our expectation is that both job-with-schedule and job-without-schedule should respect the group rate limit of 1 job every 100 seconds.

Actual Behaviour

❌ We see that job-with-schedule is being scheduled and run on the interval of the schedule and does not respect the rate limit set by the group.

✅ job-without-schedule does appear to respect the rate limit config and only runs once every 100 seconds (even though it is enqueued every 20s)

We're on version 7.35.2 of bullmq-pro and version 5.53.1 of bullmq. Let me know if you have any question or anything I can clarify further.