[bug?] Uncovered properties in mutation testing?

[sinnbeck]

I am trying to get 100% mutation coverage in a filamentphp project. The issue I am having is that it is telling me that a public property isn't covered when mutated. The thing is, I can change it just like the mutation suggest, and suddenly several tests fail.. I feel that this is a bug, as I cannot see a way of fixing it via my own code..

The ListApplications class is in listed in covers() in the test file

[sinnbeck]

Ran into another example of this. I am making sure the job has the expected delay

it('is delayed', function () {
    $job = app(ProcessWebhookJob::class);

    expect($job->delay)->toBe(5);

});

But it claims that it can change the value, and still work as expected