A geode configured_feature causes a crash when use_alternate_layer0_chance is used with no entries in inner_placements

The bug

I have been experimenting with configured_features using the 'geode' feature recently. I noticed a crash after including a chance for the alternate inner placement without including any entries for inner decor.

How to reproduce

1. Download the attached datapack

1. and add it to a new world

2. Run:

   /locatebiome lithoscene:salt_flats

3. Observe game crash upon loading the feature lithoscene:volcano/geodes