problem reported here https://github.com/yahoo/mojito/issues/963

gistfile1.js

defaults.json = {
  settings: ["master"],
  array: [a, b, c]
};

application.json = {[
  {
    settings: ["master"],
    specs: {
      B: {
        base: A
      }
    }
  }, {
    settings: ["specialized"],
    specs: {
      A: {
        array: [d, e, f]
      }
    }
  }
};

ac.config.get('array')

//returns
[ a, b, c, d, e, f]

//expected
[d, e, f]