So i loaded a superflat world to test this and i spawned a wolf and tamed it, then i flew away far enough so he would teleport, i repeated this in this in 1.14.1, 1.14.2, 1.14.3 and the dog did but in 1.14.4, in my survival world and in the superflat he just walked up to me and didnt teleport and i made sure i was far enought distance away
So i loaded a superflat world to test this and i spawned a wolf and tamed it, then i flew away far enough so he would teleport, i repeated this in this in 1.14.1, 1.14.2, 1.14.3 and the dog did but in 1.14.4, in my survival world and in the superflat he just walked up to me and didnt teleport and i made sure i was far enought distance away