Mobs forgot how to walk on Lily Pads

When mobs want to cross lily pads they start walking in circles instead of walking in strait lines.

Steps to reproduce:

1- Find a lake or ocean

2- Places a 3 wide line of lily pads

3-Spawn a villager at one end and a zombie at the other

4- The zombie will walk in circle while trying to reach the villager

Was tested with creeper, zombie, villager, pig and sheep.