Question about forge weapons and new minion weapon affix

How does the new weapon affix “fire penetration and minion fire penetration “ work with forge weapons? Would it be double dipped?

I think it should?

This affix on your character weapon grants minion fire penetration. When this affix is copied to forge weapons, it grants them fire penetration.

I agree, it should theoretically work. Once for being directly benefitting you as a weapon stat, once for globally applying to your minions.