Mobs cross rail

Mobs cross rail. Normally, mobs do not cross rail, but now, mobs do. 

Steps of Reproduce

1.Put some rails

2.Summon some mobs nearby the rails

3.Wait a few minutes

4.They will cross the rails

Results

The mobs and a minecart collide because this bug. In Java Edition, this phenomenon is prevented by preventing mobs from crossing rails.