[MC-221754] Leashed wolves no longer attack when unleashed

Steps to reproduce in creative:

Place fence post
Spawn wolf with spawn egg
Tame wolf with bone
Use lead to attach wolf to post
Right-click fence post (or move fence post using a piston) to release wolf
Spawn cow
Attack cow with empty hand

Expected behavior:

Wolf attacks cow, and follows the cow if/when it runs away.

Observed behavior:

Wolf will not attack the cow unless it is within the region the wolf could reach while leashed.

Also, the wolf will not wander from that area, but can follow the player via teleportation.

Linked issues

is duplicated by 1

MC-258706 Wolves won't move Resolved

relates to 1

MC-153329 Leashing an iron golem breaks its pathfinding until reloading the world Resolved

Comments 4

Emerald Walker 2021-06-01T21:25:11Z

Can confirm, and works for 1.17 pre-release 3

Another observation that I have made is that when you attack a mob outside of the reach of the wolf, then bring it closer, the wolf will not attack it even though the wolf can clearly reach it.

anthony cicinelli 2021-07-19T01:56:11Z

I was able to reproduce in 1.171 though on very rare occasions

BlockGray 2022-12-24T16:02:17Z

Not fixed yet. Can reproduce in 1.19.3.

BlayTheNinth 2023-12-10T08:38:41Z

Can reproduce in 1.20.4 and it's because Mob.clearRestriction() is never called when the wolf is unleashed, resulting in its AI treating the entity as if it were still restricted to its last leashed position.