Arakaali's Fang will not change gem and link when swap weapon.(same weapon)

After testing out Arakaali's Fang with one that got brutality and one that not.
Summon that create from brutality will not change gem that link minion when swap the same weapon out.

Which led to abuse 6 link (dagger and shield) then swap to more defensive shield(3 link) and still gain benefit of previous 6 link.

Got some video that show using bug abuse.

https://www.youtube.com/watch?v=lCWrhNxUnuY