Tipped arrows shot into snow layer continuously apply their effects

Edit by rplatham:
Shooting a tipped arrow into a stack of snow layers causes the arrow to repeatedly fall and apply its effects each time it falls. In the attached video, an instant harming arrow is shot into a stack of snow layers and villagers are spawned repeatedly beside the stack. The villagers are damaged each time by the repeated effects of the arrow.

Original Report:
https://twitter.com/umamalter/status/781863614722498560
See. Is a screencast.