Just my opinion (for what it’s worth),
If I was looking at buying a secondhand lens, I would never consider buying a lens that had its hood permanently cut off by a previous owner. I would want it to be as the manufacturer intended (note: I own an unmodified Voigtlander FE 15mm).
In comparison, I modify my motorcycles, but I always retain the standard parts so it can be restored to standard unmodified condition if the next owner wishes to do so.
A great lens, is this one.