don't make unneeded updates to the DOM for blocks w/o modifiable labels
don't make unneeded updates to the DOM for blocks w/o modifiable labels

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