Bugfix :
Fixed backtracking to a solved puzzle and resetting it will cause unexpected behaviour with Undo stack
Fixed loading save file does not load dataline's and datablockslot's state properly
Fixed hub lightpole not functioning properly
Fixed lv1's portal being enabled by default incorrectly
Fixed unable to load into azelia mountain
Fixed azelia mountain's Puzzle#5's exit malfunctioning
Fixed snowpile being inspectable and causes issue
Fixed azelia mountain puzzle5 malfunctioning