I'm confused. You said you found a bug in the hash? Or are you considering the lack of verification to be a bug? I left it out kinda intentionally since submitting "bad" solutions doesn't really hurt and I just didn't bother with the CPU verification. But yea it would be nice and very helpful in debugging. Running in benchmark mode with a low target would be a good tool for checking if the GPU hashing works or not, instead of having to wait until you actually solve a block.
It is a bug in my version. I have replaced some of the kernals in the miner to give a small boost. When changing kernals, things can go wrong, and it would be helpful to have the cpu to doublecheck the result.
Aah, got it. Thought you found something wrong in the original.