Please improve leashing behavior in the open world

[Giantbane]

If multiple players are fighting a single enemy, and the person who has the highest enmity runs too far away so that the monster runs too far away from his spawn location, the enemy currently becomes invulnerable, runs back to his initial location and resets his health.

Some players are currently using this to steal Hunt Marks from others who are in the middle of fighting a monster.

It would be preferable if the monster just removed the out of range target from his enmity list and attacked the next highest target without becoming invulnerable and restoring health. This would prevent abuse entirely. It would also prevent a single tank mistake from erasing the damage contributions from everybody who is attacking the monster (more likely in Rank A or S fights).

Alternatively make Hunt Marks immune to provoke similar to how FATE enemies are immune to provoke. This would make it much harder to steal a target that's already engaged, but it would still mean that a tank that accidentally pulls a target too far away still erases everyone's contributions whether or not they are even in the same party.