When a Vex that has been summoned by an Evoker goes through a portal, it will go to the coordinates of the Evoker in the dimension it was in (exemple : overworld x-50 y58 z50 -> nether x-50 y58 z50).

Steps to reproduce the bug :

• Put/spawn an Evoker next to a portal (nether or end).
• Make the Evoker spawn Vex by going in survival or putting a villager next.
• Make Vex go though the portal by either letting it fly around or attracting it.
• Follow the Vex through and after the portal.

Expected behavior :

Vex would wander after going into the other dimension if they don't find a target.

Actual/observed behavior :

Vex goes to the Evoker's coordinates of the dimension it was in (exemple : overworld x-50 y58 z50 -> nether x-50 y58 z50) in an attempt to stay by the Evoker's sides if it doesn't have a target.