Lava generating inside ice spikes

Put the summary of the bug you're having here

What I expected to happen was...:

Lava blocks not generating inside a cold place like inside an ice spike.

What actually happened was...:

Lava blocks generated inside ice spikes.

Steps to Reproduce:
1. The seed I used was -4361843253066673876
2. The ice spikes biome I went to was at 26 -3829