Conditional ivar assignment in initialize should check default value

[JacobUb]

class Foo
  @bar = 0

  def initialize(string)
    if string.size > 0
      @bar = string.size
    end
  end
end

Foo.new("hello") # => instance variable '@bar' of Foo must be Int32, not Nil

I think it should use the default value that it was already given. It's what it does if initialize doesn't mention @bar at all.