Incorrect conversion of nested modifiers with 'unless'

[jweir]

Rubocop version 0.37.2 converts the below (awful code)

class X
  def test
    if true
      unless @state == 'x'
        puts 'never!'
      end
    end
  end
end

into this incorrect bit of code

class X
  def test
    puts 'never!' if true && !@state == 'x'
  end
end

the problem is !@state == 'x' should be @state != 'x'

[jweir]

After working on this – I personally don't like the solution. It might be better to just not autocorrect these cases, which are hopefully very rare.