Summary:
Tadpoles do not jump from side to side "like fish" on land.
The changelog says that:

• Tadpoles "jump around" like fishes when on land, and eventually die

However, fish jump from side to side, and tadpoles do not roll over when jumping.

Steps to reproduce:

1. Summon a Tadpole on land.
2. Watch him jump.

Observed results:
The tadpole will jump up and down.

Expected results:
The tadpole will jump from one side to the other.