Public typed class properties incompatible with lazy fetch mode in PHP 7.4

[a-menshchikov]

There is a Notice from \Doctrine\Common\Proxy\ProxyGenerator::getLazyLoadedPublicProperties about undefined index when I use public typed properties in my class without any default value.

[NikoGrano]

I was just doing issue and patch for this. Thank you for doing this before me. This allows me doing quick hotfix and continue work. :)

Please merge it ASAP.