Lighting system is too buggy to continue until I know wtf is going on

Conflicts:
	baystation12.dme
	code/game/turfs/turf.dm

code/ZAS/Zone.dm

@@ -108,6 +108,7 @@ Class Procs:
 
 /zone/proc/rebuild()
 	if(invalid) return //Short circuit for explosions where rebuild is called many times over.
+	if(air_master.current_cycle == 0) return //Why would you rebuild when you're building?
 	c_invalidate()
 	for(var/turf/simulated/T in contents)
 		//T.dbg(invalid_zone)