ID3D10Blob, not ID3D10Block. :)
Ugh, I mistyped that thing tens of times, I don't know why. And of course I forgot to fix only the one which couldn't be caught by the compiler.
I don't think we're too worried about the blob refcounts though, so I wouldn't mind just dropping these refcount checks here like in the other patches either. In any case, thanks for taking care of this.
I'm not particularly worried about it, and I wouldn't stress too much over it. But given that in this case it's essentially free, I'd leave it.