When I've spoken to them one is sane, one refuse to let go of the illusion and two start fighting with you. It's super buggy, but from dialogue it seems that you can only truly "free" one of them.
It was Mask of Sorrows or similar name (haven't played it in eng yet) and one in the corner, 2 walking in transition space were hostile when I told them about hag's death.
I hope knock out and stealing masks post hag battle will be possible in final version of the game. It could be cool to have them wake up and trigger dialog after, not just jump into combat so we can have intimidation or persuasion options.