fixed bug->hidden/masked blocks are visible if area below any palette is clicked
fixed bug->hidden/masked blocks are visible if area below any palette is clicked

hemantkasat/turtleblocksjs,garyservin/turtleblocksjs,i5o/turtleblocksjs,tradzik/turtleblocksjs,tchx84/turtleblocksjs,Daksh/turtleblocksjs,rodibot/turtleblocksjs,rodibot/turtleblocksjs,i5o/turtleblocksjs,hemantkasat/turtleblocksjs,hemantkasat/turtleblocksjs,tradzik/turtleblocksjs,rodibot/turtleblocksjs,Daksh/turtleblocksjs,walterbender/turtleblocksjs,tradzik/turtleblocksjs,tchx84/turtleblocksjs,walterbender/turtleblocksjs,i5o/turtleblocksjs,garyservin/turtleblocksjs,tchx84/turtleblocksjs,garyservin/turtleblocksjs,walterbender/turtleblocksjs,Daksh/turtleblocksjs