render(:inline) in a layout before yield replaces original content

The issue I'm seeing is that if you call render(:inline => "some text") in the layout before yielding to the main content for the page, the content of the yield will replace the original content of the page.

Perhaps this is the intended behavior and I just don't understand. I haven't delved into the source yet to see why this is happening, or if using render :inline in a layout is in fact incorrect usage.

Nor have put together tests or a demo to exhibit it, but it's fairly simple to reproduce.

Given a fresh project with a controller 'test' and an #index action.

rails g controller test index

In config/routes.rb

root :to => "test#index"

In app/views/layouts/application.html.erb

<%= render :inline => "layout inline 1" %>
<%= yield %>
<%= render :inline => "layout inline 2" %>

If you start up the server and hit the home page you'll see:

layout inline 1
layout inline 1
layout inline 2

The content in index.html.erb has been replaced by the inline render prior. This does not happen in Rails 2.