Custom dimensions have more and more caves each time entered

Issue description

Do you remember the crazy cave bug?

The one which adds more and more caves each time you enter a dimension?

Well I did some testing and I am pretty sure it's back.

https://mcreator.net/tracker/issue/59247 <-- This one

Issue comments

When possible, attach your MCreator workspace (preferably a minimal example workspace required to reproduce the bug; use File -> Export workspace to a shareable ZIP...), game or build logs (full logs, do not crop them, in text format, screenshots of logs are not acceptable) from the Console tab or terminal and steps to reproduce the bug in your workspace. If logs are long, use service such as Pastebin to host the log and provide the link to the log from the ticket. Please specify which mod elements to check in your workspace too, if applicable.

Please provide a workspace for testing and exact steps in what form it is back.

Oh yeah 1 sec

https://www.mediafire.com/file/vzr93vq9rrilaiv/ar.zip/file <-- Workspace was too big, 17.20 MB

To enter sugarenia you need to rightclick with an item called "Ancient Recaller" with a red/white texture (To go back you'll need to use the one with a blue/green texture)

(Switch dimensions for a couple of times and you'll notice there will be more caves than usual when you explore the underground further)

Do you need anything else?

I will test after the weekend, thanks!

Okay :)

I can confirm in some cases cave generator could still be initiated multiple times resulting in this.

Fixing in 2020.4

Closing the ticket.

[Bugfix #63146] Custom dimensions could have more and more caves in some cases

You're awesome