While experiencing this bug with Minthara in Moonrise Towers being stuck in this hostility condition, what happens if you cast Silence spell on her?
Was thinking maybe it will force the game to check on her last condition and try to do another reset? dependig if the triggers were coded in a certain way of course but I don't know is just another idea of a possible work-around.

I jsut hope the attempted fix of a rework of the script that determines whether a character is too busy to talk isn't backfiring tenfold under unique game conditions, like that of Halsin assets.