Customizer H1-H6 not imported from 3.2.0 config.json

Created by: hebbet

i imported the config.json generated with 3.2.0 in September 2014 in the current Customizer. I changed the h1-h6 values for some reasons: https://gist.github.com/anonymous/6923a24adaef3194f87c

what happenes: the h1-h6 values are not imported

what is expected: it imports the h1-h6 from the file.