Affects Version/s: Minecraft 16w05b, Minecraft 16w06a, Minecraft 16w07a, Minecraft 16w07b, Minecraft 1.9 Pre-Release 3, Minecraft 1.9, Minecraft 1.10.2, Minecraft 16w43a, Minecraft 1.12.1
Fix Version/s: Minecraft 1.13
previously (1.8.x) sitting in a moving minecart, one can throw snowballs in addition to using a bow and arrow, to hit a target without damaging it significantly (such as nametagged pigmen in a gold farm) in order to aggro the rest
I am not certain how long the bug has existed in the snapshots but I noticed it several versions back from the version herein reported.
bow and arrow still work as expected, but one cannot even throw a snowball straight upwards from within a minecart.
after some additional testing, i discovered I could occasionally make it work, but not repeatably.