IBX-11391: Handled deleted creator for trash item when listing items

[barw4]

🎫 Issue	IBX-11391

Description:

In 4.6 it was working correctly because we were simply doing:

        $ownerId = $trashItem->getContentInfo()->ownerId;

        if (false === (new UserExists($this->userService))->isSatisfiedBy($ownerId)) {
            return null;
        }

-> means no proxy was initialized for this resource.

In 5.0 we crashed on first line:

        $ownerId = $trashItem->getContentInfo()->getOwner()->getUserId();

        if (false === (new UserExists($this->userService))->isSatisfiedBy($ownerId)) {
            return null;
        }

because proxy was initialized causing 404 earlier.

For QA:

Documentation:

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[konradoboza]

Should we have a test coverage for this case?

[barw4]

Should we have a test coverage for this case?

Honestly I don't see any benefit, it's trivial change and cannot break anything