Morrissey actually wanted George Martin to produce Queen is Dead.
‘Legendary Beatles producer George Martin had already worked on a number of iconic albums including Sgt. Pepper’s Lonely Hearts Club Band when he was asked to work on The Queen Is Dead. Martin declined, stating that he would prefer to be remembered for his work with The Beatles.’
Not sure how i feel about that idea, i take it he was being polite and just didn't like the band, as i doubt he would be remembered for anything other than The Beatles anyway.