render() without arguments renders the last rendered state instead of the one it's called from

[cameel]

When I render a cell state from within a different state of the same cell, Cells seems to remember the name of the state and uses it when I call render() again. See an example:

# app/cells/a_cell.rb
class A < Cell::Rails
  def foobar
    foo = render :state => :foo
    bar = render
    return foo + bar
  end

  def foo
    return render
  end
end

-# app/cells/a/foobar.html.haml
bar

-# app/cells/a/foo.html.haml
foo

I'd expect the second render() to be equivalent to render :view => :foobar but it works like render :state => :foo instead.

The call below returns "foo\nfoo\n" instead of "foo\nbar\n":

render_cell :a, :foobar