[1.9] Pandas appear to now be doing headstands

Verification Build: 1.9.0.5 RC1

Partner Rank: 2

Summary:
Pandas bodies are rotated in 1.9

Impact:

This appears broken in both Tinyfootprints and Adventures' dream Texture packs. 

Repro Steps:

1. Download Tiny footprints texture pack from the store on 1.9
2. Create a world in creative mode 
3. Spawn a panda 
4. Observer the panda vertically rotated 
5. Repeat the above instructions in 1.8
6. Observer the panda properly rotated 
    

Observed Results: 

The panda has been rotated 

Expected Results: 
The panda maintains it's orientation 

Screenshots/Videos attached: 

Yes