Dependent test of skipped test has status -1

[OndraM]

Q	A
PHPUnit version	7.4.3
PHP version	7.2.11
Installation Method	Composer

Hi,
we have a test method which is now being skipped using markTestSkipped(), and another test method which depends on this (now skipped) test:

<?php declare(strict_types=1);

namespace My;

class SkippedTest extends \PHPUnit\Framework\TestCase
{
    public function testFirst(): void
    {
        $this->markTestSkipped('skipped');
    }

    /**
     * @depends testFirst
     */
    public function testSecond(): void
    {
        $this->assertTrue(true);
    }
}

We utilize custom TestListeners, especially addSkippedTest and endTest methods.

<?php declare(strict_types=1);

namespace My;

use PHPUnit\Framework\Test;
use PHPUnit\Framework\TestCase;

class MyTestStatusListener implements TestListener
{
    public function addSkippedTest(Test $test, \Throwable $t, float $time): void
    {
        if ($test instanceof TestCase) {
            echo "Skipped test " . $test->getName() . ", status: "  . $test->getStatus() .  "\n";
        }
    }

    public function endTest(Test $test, float $time): void
    {
        if ($test instanceof TestCase) {
            echo "End test " . $test->getName() . ", status: "  . $test->getStatus() .  "\n";
        }
    }

    // ...
}

In this scenario, expected behavior is this output:

Skipped test testFirst, status: 1
End test testFirst, status: 1
Skipped test testSecond, status: 1
End test testSecond, status: 1

However the actual output is:

Skipped test testFirst, status: 1
End test testFirst, status: 1
Skipped test testSecond, status: -1
End test testSecond, status: -1

Ie. even though the addSkippedTest() method gets called, the test status property (getStatus()) of this actual TestCase is not 1 (BaseTestRunner::STATUS_SKIPPED), but -1 (BaseTestRunner::STATUS_UNKNOWN), which seems unexpected and inconsistent.