Props become ownerless if player changes name

[MissKay1994]

I've noticed an issue with Nadmod on servers where if a player changes their name in Steam, all of the players props become ownerless and cannot be cleaned up with the admin panel for Nadmod. The props after they are ownerless can only be removed by using the remover or with admin Cleanup Everything. Just as somewhat of a solution to this, I could say possibly use Steam ID for prop ownership