Parity: collision box& selection box shape match java

selection box are all just squares but o java it matches block shape

for blocks like:

stairs, iron bars, grass path, farmland, redstone dust, piston arm, anvil, honey, signs, cross glass panes, lectern, composter, hopper, multi sided vines, multi sided glow lichen, dragon eggs, sugar cane, torch lantern, brewing stand, and many many more blocks.