Slimes and magma cubes which are ridden by another entity continue pathing in the same direction until they are reloaded

Slimes and magma cubes which are ridden by another entity do not attack other entities, and instead continue pathing in the same direction until they are reloaded. This particular behavior was not described in MC-271195 so I’ve decided to create a clone of that report, although I do not know if this has always been the behavior since that issue first emerged.

To reproduce

1. While in creative mode, run summon slime ~ ~-3 ~ {Passengers:[{id:"vindicator"}]}
   After a variable amount of time the slime beings wandering

2. Continue observing the mobs
   ❌ The slime never changes direction

3. Switch to survival mode
   ❌ The slime begins marching in that direction much faster

4. Reload the world
   You are back at step 1 (see also MC-250059)

Expected behavior

The vindicator would always be able to control the direction the slime is facing.