Alternate release API seems broken

[jlherren]

Hi, I really like this small library so far. My impression is that the following code should work properly:

let Mutex = require('async-mutex').Mutex;
let mutex = new Mutex();

async function doWork(id) {
    await mutex.acquire();
    try {
        console.log('Doing work', id);
    }
    finally {
        mutex.release();
    }
}

async function doEverything() {
    await Promise.all([
        doWork(1),
        doWork(2),
        doWork(3),
        doWork(4),
    ]);

    console.log('All done');
}

doEverything();

Expected output ("Doing work" lines not necessarily in that order):

Doing work 1
Doing work 2
Doing work 3
Doing work 4
All done

Actual output:

Doing work 1
Doing work 2

This only happens when using the alternate release API as described in the README. If I use the returned release function it works fine. I'm running this on node v12.19.1 on linux. But initially I experienced this issue in a web application (babel + webpack).

[DirtyHairy]

Thanks for the report. That was a nasty bug, fixed in v0.2.6 (and don't ask what happened to v0.2.5 😛 ).