Found exploitable bug, it can used by town to reveal disguiser. Here it is.

If disguiser or informant act, killed player can instantly quit and you will see this in log:
1.jpg

But next day player with departed soul still in game:
2.jpg

And can be easy revealed by town. So, the way to use exploit for town is:
1. Instantly quit if you killed by disguiser
2. Your old, still not stolen name will appears in log "XXX's soul has departed", and everyone will see it
3. Next day you can lynch player with this name, if he is in game. He is disguiser.

This replay, night 2, you can see this bug appears. I played as triad, and noone else seen it. But town can use it with ease.
bug maf.SC2Replay