Continentality in perlin noise can get <<-1

The continenality dimension of the multi perlin noise function can get well below -1.

In this case it is creating big areas of mushroom shores

Seed "Chicken" or [-188 430 6027]

 

Can be found direcly at spawn, but continues in a wider area

 

Root cause could be a missing normalisation

 

No sure this is a bug or an easter egg

Having big areas of mashroom shore at spawn for a seed "Chicken" can also bee seen as a nice feature. What can be more chicken than a huge mashroom shore . More likely this is a bug, that is hinting to a issue in the code.