rust spread doesnt spread to certain tiles

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:514.1589
Key:bidlink2

Round ID:

4190

Testmerges:

• Behold, a Box!
• Isthisamap
• Steel Station, a new large station for the map rotation!
• [PORT] Better Ghost Selection
• [PORT] Custom antag objectives and a lot of changeling updates
• Fixes rev wins breaking the game
• Prettify Adminwho into an examine block, display non-admin admins separately
• Adds a hacked area pinpointer for contractors, that points to any area regardless if it has a beacon or not
• Currently a TM PR for debugging

Reproduction:

you cant survive as a ascended rust heretic if your on the shuttle because your abilities only work on rust tiles

[NotACoderSorry]

This is intentional, heretics can't rust titanium tiles. (and some others)