Question: Predecessor destruction on heir.destroy

[nicolaspr]

Hi,
and thank for your gem. I've 2 classes : Media (predecessor) and Image(heir). I'm trying to destroy a media's instance (destroy) through the Image.destroy method.
Actually, the "predecessor" class is destroyed by "heir".destroy but the reciprocal isn't working.

Could you indicate me how could I fix this issue ?

Thx