[300556] Bizarre temperature conductance

Testing apparatus:

Abyssalite is spawned in at 1K, 100kg tiles. One 1kg tile of oxygen is added at 100K in the top-left tile.

Observe how as a gas the oxygen is losing about 0.1C per in-game second, but once it liquidates, thermal transfer is drastically reduced despite the large increase in conductivity (0.024 to 2.0).

Additionally, one can observe casually when digging in the oil biome that oil dropping onto 1500C abyssalite will instantly convert the oil into petroleum and then sour gas. However, once the abyssalite drops below those phase change temperatures, the reaction instantly stops.

There is a clear disconnect between mechanics, either abyssalite should be conducting with liquids better (to match gasses), or gasses are over-conducting and the phase-changing is a bug (to match liquids).