Fix for getting stuck in the character creator

If you logged in to 0.5.0 and were sent to the character creator, and then told "You already have a character", this update fixes that. Your character was never lost. The new island sent more of the world at once than 0.5.0 could receive, so your character never arrived.

Please update: the itch app does it for you, and the web version is already current. 0.5.0 now shows "A new version is out" instead of letting you get stuck.

Nothing else changed, and the world was not wiped.