Bug with 'The Teleporter' quest

As is reported here by another user: The Teleporter quest bug/problem (v3.0.15.252)

Quote
If a character with any points in the "Pain Reflection" skill is the character that accepts this quest, it becomes impossible to get full rewards. When Gawin teleports you, he takes damage from the skill, this counts as an attack, and he becomes immediately hostile.


I can certify this is happening to me also.