Even though I've been hit by this bug, I'm not sure what happened exactly. However, judging by the report, the game crashes when you kill a non-corrupting monster and a corrupting monster simultaneously. In any case, I've been too paranoid to ever cast mind blasts again on corrupting monsters ever since.
The good news is that confusion blasts on them will never crash the game (AFAIK). Besides, some monsters with a corrupting melee attack unexpectedly appear not to count as "corrupting". For example, dwarven chaos knights can safely be attacked with mindcraft!
You steal a scroll labelled HITME. The orc hits you.