Bug with item frames(and possibly only for maps)

If you put a map(and maybe any other thing too not sure)on item frame and then break it there's a big change when the map falls down to vanish.I got 2 screenshots,barely showing anything but i hope you can test to see the bug yourself.I tested this first on 1.8(had 1 mod optifine but that doesn't change anything on stuff like that)and then on 1.8.8(vanilla)