Feature order cycle caused by overriding muliple placed features with the same configuration

This is useful when e.g. wanting to override vanilla features.

It is only a problem if the placed_feature both references the exact same feature, and uses the same placement rules.

Attached is a datapack that replaces both diorite ore placed features to have no placement rules (and thus removing them from generation). Since those features reference the same configured feature in vanilla using two different sets of placement rules, this will cause the exception.

I don’t see why this would cause any problems, and it works fine if you e.g. add a dummy placement rule with “count 0” to exactly one of the placed features to make it look different.

Steps to Reproduce

1. Download [mediaInline]

2. Open the world creation screen

3. Go to the more tab

4. Click the Datapacks button

5. Drag the file into the screen

6. Move it to the left side (Selected)

7. Click Done

8. Click Create New World

Expected Result

The game loads this datapack fine and can handle multiple placed features with the exact same configuration.

Observed Result

The game crashes and upon attempting to load it after restarting the instance, it will fail due to datapack errors.