Animation on turtles is WAY too fast when riding it.

Verification builds: Release 924386 - 1.5.0.4 BETA
Summary: If you ride a turtle, it's animation speed is turned up to 9000 and it looks like it's a helecopter about to take off.

Repro Steps:

1. Download the 'super behavior bug test time' (tm) map from Greg on Slack
2. summon any of the listed mobs
3. tame them with a beetroot
4. ride it around the box

Observed Results:

1. ridiculously fast animation

Expected Results:

1. it should be at a speed in accordance to the speed its actually traveling at

Mobs it's bugged on:
turtles