The bending is interesting. Are there other examples of this out there? Part of me can't help but think that it probably just got hit with a plow enough times.
From the article: "This piece was designed for a ritual purpose, which is why it was found folded. Bending a metal object as a symbolic act of destruction before burial was a common practice in the Bronze Age and later."
I recently saw the "Vikings" Exhibition [1] in Berlin, they had several bladed weapons on Display that were bent like this. I don't remember dirks, but five to ten swords that were bent to really weird shapes and buried with their owners. Was really interesting.