Slimes, magma cubes and pufferfish attack while the game is frozen

Slimes, Pufferfish and Magma Cubes will still attack you if you type the command /tick freeze

 

What should happen when the game is frozen is that no mob can deal damage to you

 

Instead, Slimes, Pufferfish and Magma Cubes attack you if you get close even if the game is frozen