OK, so this means that Minor Healing may heal any maneuver penalties, bleeding and hits by casting it multiple times until the damage is reduced to zero. Fine so far.
Does this change when using Hack'n'Slash? In the section on healing at the end of H&S, the comment on Minor Healing says "it should only be used to heal injuries within the Lightly Wounded classification, and perhaps some lesser non-specific damage within the Moderately Wounded classification. If a character has specific damage, this spell cannot reduce or eliminate any penalties or other damage associated with that given critical, such as hits."
This very much sounds like the spell could only heal light wounds i.e. <=50% of concussion hits, <= 3 bleeding, <= 25 penalty. Or do I minsunderstand the wording.