prefer-arrow-callback fix conflicting with prettier fix

Edit by @lydell: TL;DR We recommend turning off these rules for the time being:

{
  "rules": {
    "arrow-body-style": "off",
    "prefer-arrow-callback": "off"
  }
}

What version of eslint are you using?
v4.9.0

What version of prettier are you using?
v1.7.4

What version of eslint-plugin-prettier are you using?
v2.3.1

Please paste any applicable config files that you're using (e.g. .prettierrc or .eslintrc files)
https://github.com/ismail-syed/prettier-eslint-config-invalid-code

What source code are you linting?

function foo() {
  return isTrue && [0,1,2].map(function(num) {
    return num * 2;
  });
}

What did you expect to happen?
The code above should be formatted as per prettiers config and also should adhere to that prefer-arrow-callback fix

What actually happened?
Invalid code was generated, closing parenthesis is missing on the return statement.

function foo() {
  return (
    isTrue &&
    [0, 1, 2].map((num) => {
    return num * 2;
  });
}

Is the underlying issue from the prefer-arrow-callback fixer or the prettier plugin fixer?

Start with the linked prettier-eslint-config-invalid-code reproduction and the JavaScript sample in this issue, using the reported ESLint, Prettier, and eslint-plugin-prettier versions. Determine whether prefer-arrow-callback or the Prettier plugin produces the missing parenthesis, then verify that the reproduction formats and lints to valid code without conflicting fixes.