Cannot create Version

[brutto]

Model Version src/Issue/Version.php has $releaseDate prop described as follow:

...
public ?DateTimeInterface $releaseDate;
...

But on VersionService::create() we have this kind of:

    public function create($version)
    {
        if ($version->releaseDate instanceof \DateTimeInterface) {
            $version->releaseDate = $version->releaseDate->format('Y-m-d');
        }
     ...

Runing with strict-type enabledyou will get one of two errors:

• Cannot assign string to property JiraCloud\Issue\Version::$releaseDate of type ?DateTimeInterface
• Typed property JiraCloud\Issue\Version::$releaseDate must not be accessed before initialization