Its just like MC-109266 and this should be like this, i know it says now that it works like intended, but MOJANG promised to not change the way redstone is working so far, only to add the observer. right now you are changing redstone big time, plz dont do this cause it is breaking everything and is becomming only more buggy, plz change it back so that the repeater can give block updates to air. cause your breaking the normal BUD in the game.
:'(

Plz listen to the redstone community