Wolf AI Nerfed?

Wolf AI seems to be much more scattered than in past versions.  Self preservation issues too?  See attached video link: Link

I should add specifics:

• Wolf tracking to sheep in video seemed adverse to running in the diagonal.

• Wolf seems to stop tracking to just randomly jump without forward movement (I did not bump him in the video, backed off just to prove it).

• Wolf down right ignored the fact that I punched the sheep (2nd sheep in video).  Had to punch a second time.  (This demonstration was for the video, what prompted the video was that I was seeing repeatable abnormalities with wolf behavior)

• Wolf nearly drowning self (This was actually the second time I saw this, and I had to work a little to repeat it, but the first time the wolf sat under the water much longer than in the video.  See #4 for why I believe in the video he saved himself.)

• Wolf seems to randomly run away from you, different from ambient movement since it seems very linear, and almost intentionally going in X direction for X distance like it saw a skeleton or something.  We see this 2 times in the video.  First while I was waiting for the wolf to attack the 2nd sheep, and 2nd when the wolf was sitting under a solid block drowning.