Atmos cascades don't work

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:516.1656
Key:icetype

Round ID:

10893

Testmerges:

• Pubbystation!!
• "Bitrunning is a crime" Glitches, modsuits and balloons
• PDA Alert level
• Domain expansion, CATastrophe!
• Scrap Vehicles 1.5
• [DRAFT] Cult Revamp
• replace human_readable_timestamp with a rust-g formatter
• Global AP rebalance (No longer shotgun nerf!)

Reproduction:

Trying to do an atmos cascade doesn't work - you can have 10000 mol of each gas on the tile, but the supermatter will become a singularity because of that mol count, entirely sidestepping the cascade.

[Ice-Type]

nevermind, it needs the MAIN ENGINE APPARENTLY

[Shoddd]

I'd hope so