When a vex is teleported, it is no longer hostile and slowly moves towards its original coordinates

The bug

If you teleport a vex using /tp command, its movement pattern will be broken and it will move so slow. In addition to this the vex will no longer become hostile to any entity.

How to reproduce

1. Summon a vex
2. Run the command:

   /tp @e[type=vex] @s
   

   → Notice how slow the vex moves

3. Attack the vex
   → Notice how the vex is not angered