Liquids and entitys don't deleted after creating a debug world

The bug

After create a default word and deleted this, create a debug world don't delete liquid and entity

 

How to reproduce

• Create a default world with the seed 780714021944318231 and use this command

  /execute in minecraft:overworld run tp @s 154.36 64.00 30.68 -361.80 29.85 

• Leave and delete the default world (by maintain Shift)
• Create a debug world
• check the liquids and the entitys won't disasppear