1. The victory screen after a fight which ended with taming a beast shows as opponent the enemy of a previously won fight.
2. Winning a fight with taming a beast and having no free army slots leaves the tamed beast as "ghost" on the map (full hp, but it vanishes when moving the army on its space)
3. Winning a fight with taming a beast resurrects fallen troops; ie if i loose a secondary champion to a spider and tame the spider afterwards the champion is present in the army after the fight with the hp it had before the fight (works even if you loose all troops but the tamer).
Savegame here, just before the fight for easy reproducing.