Wild wolves will "see" sheep, rabbits, skeletons and strays through solid walls and become hostile toward them. I've searched all over and can't find this as intended.
MC-129191
Wild wolves see through blocks to become hostile toward mobs
Resolved
Cannot Reproduce
0
(Unassigned)
Confirmed
Minecraft 1.12.2, Minecraft 18w16a, Minecraft 1.13.2, Minecraft 18w45a, Minecraft 18w46a
Retrieved
seems to be fixed in 20w17a