I think the Duncan quest needs a complete rewrite. Currently, the player can get the
reward only if he has never met Koan. Then, the player can only choose between
outright evil or spare naively. Finally, Tux never get a clue about Koan or the
In my opinion, the correct solution is to expand the quest by allowing Tux to help
Koan. By example, faking the death of Koan. Or providing Koan with some means of
defense. In any case, Tux must have terminated the quest with Duncan before he
receive the reward of Koan.
So, I prefer to spend more time of the quest after the 0.16 release. I think we can
live with this bug. If everybody agree, I will lower the priority.