refactoring

core/scan.lua

@@ -38,8 +38,7 @@ do
 	end
 
 	function private.state.get()
-		local _, state = next(filter(copy(scan_states), function(state) return state.id == thread_id end))
-		return state
+		for _, state in scan_states do if state.id == thread_id then return state end end
 	end
 end