Promises are not working inside applicationShouldTerminate

I'd like to gracefully clean up some stuff using Promises when my app quits, so I've implemented `applicationShouldTerminate`. I'm definitely making it inside that method, but my promise code inside it only works when the app is quit via Command-Q. If I quit the app programmatically using `NSApplication.shared.terminate(self)` the `applicationShouldTerminate` does run, but the promises inside it do nothing.

I've tested this in a fresh project with the following:

```swift
func applicationShouldTerminate(_ sender: NSApplication) -> NSApplication.TerminateReply {
print("applicationShouldTerminate")

let promise = Promise { fulfill, reject in
print("hello")
fulfill(())
}

DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(5)) {
NSApplication.shared.reply(toApplicationShouldTerminate: true)
}

return .terminateLater
}
```

When I quit with cmd-Q this works perfectly but when I quit the app programmatically using `NSApplication.shared.terminate(self)` it prints `applicationShouldTerminate` but nothing else happens and the app never quits.

Any suggestions?