Help skeleton AI bug!!!

What I expected happened was...
When I check on gamepedia mcpe website in version 15.0 change said: skeleton have animation pulling arrow..

What actually happened was...
When I go to the skeleton and skeleton at me I don't see animation skeleton pulling arrow.

Step to reproduce:
1.search to website gamepedia mcpe and change of version 15.0.
2.here description:http://minecraft.gamepedia.com/Pocket_Edition_Alpha_0.15.0
3.try find change of mcpe version 15.0 and you will see they said:Skeletons
Added animation for shooting arrows and recharging bows.