So, if I understand it correctly, you first got a job offer, resigned, and then later you got to know that one of the background verifications before you are sure of the job, is a check with your current manager, which you cannot stand, and probably is the reason why you wanted to leave? Is that correct??
That really ...... !!
You should actually ask before you resign your present job what the possible verifications are before you really get that written new contract in your hand. But, to be honest, I would not have done that either.