Of course, here are a couple. Without non-destructive testing, I can't say for sure if the crack goes through, but to avoid disappointment I'll assume it does and let prospective purchasers decide for themselves.
Looking at the (few) marks on the stem, it looks as if it may have been fitted to a very shallow depth then tightened, which might explain the crack.
Looking at the (few) marks on the stem, it looks as if it may have been fitted to a very shallow depth then tightened, which might explain the crack.