Ouroboros does not re-enqueue

Summary

In Ouroboros, it does not re-enqueue because it thinks it is unsafe to do so.
In safeToEnqueueAccordingToLimits, the following line is always returning false:
return (Limits.getLimitQueueableJobs() - (Limits.getQueueableJobs() + 1) > 0
Limits.getLimitQueueableJobs() returns 1 for async code
Limits.getQueueableJobs() returns 0 if no additional jobs have been enqueued
Thus safeToEnqueueAccordingToLimits thinks it is not safe to enqueue the next job.

I believe this can be fixed by removing the +1. I'd be interested to know the purpose of that part of the statement.

Salesforce Org Type

Scratch Org

Steps To Reproduce

Create an Ouroboros that re-enqueues itself a few times.

Current Behavior

Only the first iteration runs

Expected Behavior

Ouroboros re-enqueues jobs until the exit criteria is met

Relevant Log Output

Start at safeToEnqueueAccordingToLimits and inspect how Limits.getLimitQueueableJobs() and Limits.getQueueableJobs() are used for async execution. Reproduce an Ouroboros that re-enqueues itself and verify that it continues running until its exit criteria is met.