When you put an invalid biome id in superflat the game crash.

I have seen this bug resolved but I still have this issue.

How to reproduce :

1. Create a new world

2. Go to "more world option" and select "superflat" world type

3. Click on "Customize"

4. Click on "Presets"

5. At the end of the box replace the biome id by a non existing biome id

6. Click "Use Preset"

7. Click "Presets" or "Done"

8. The game crashes