That was probably a promoter cashing in on the name.
When John McVie wouldn't leave John Mayall, Peter Green decided to put an ad in Melody Maker, which I answered. I believe I was the first person to audition. I was 17, still at school and wasn't half as good as I thought I was! Peter Green's mum would have played better than I did that day. Bob Brunning got the gig on the understanding that McVie would replace him if he ever changed his mind, which he did 3 months later.