Issue has been fixed bugreport can be closed

Bug
Whenever your game crash the world gets unable to play again, it is corrupted. The game fails to get back to an older back-up

Expected result
Game loads the back normal up, or a back-up if needed (can takes some tries but it will do eventually)

Viewed result
After doing Alt + F4 the games comes unable to be opened again, it crash every time you try to open it

Steps on how to reproduce it
Step 1: Create new world
Step 2: Press on Alt + F4 (Windows only)
Step 3: Restart the game
Step 4: Open the world

You'll see the world will be unable to be opened again

Media
In the video you'll see myself in a random world of my. Then whenever I press Alt + F4 the game crashes. I open the game again, try to open my world back open but every time it opens it will show one frame and then closes Minecraft again