I wonder if person died, and his clone waking up can be compared to a person getting into a deep coma from an accident and waking up a year later. In both cases a consciousness disintegrated and a consciousness was integrated?
Being genetically identical is not equivalent to having same memories and experiences. Such things are not stored in DNA.
Would you believe it, if you witnessed a minutes-long, violent, extremely painful suicide, and the dead individual’s clone said they remember everything, and that despite all the screaming and begging, it was an unremarkable experience?